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  1. Article ; Online: Letter to the Editor regarding Peto T; UK COVID-19 Lateral Flow Oversight Team

    Jonathan J Deeks / Jacqueline Dinnes / Clare Davenport / Yemisi Takwoingi / Matthew McInnes / Mariska MG Leeflang / Jane Cunningham

    EClinicalMedicine, Vol 38, Iss , Pp 101037- (2021)

    COVID-19: Rapid antigen detection for SARS-CoV-2 by lateral flow assay

    2021  

    Keywords Medicine (General) ; R5-920
    Language English
    Publishing date 2021-08-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: A protocol for the VISION study

    Veeru Kasivisvanathan / Vinson Wai-Shun Chan / Keiran D Clement / Brooke Levis / Masoom Haider / Ridhi Agarwal / Mark Emberton / Gregory R Pond / Yemisi Takwoingi / Laurence Klotz / Caroline M Moore / VISION study collaborators

    PLoS ONE, Vol 17, Iss 2, p e

    An indiVidual patient data meta-analysis of randomised trials comparing MRI-targeted biopsy to standard transrectal ultraSound guided bIopsy in the detection of prOstate cancer.

    2022  Volume 0263345

    Abstract: Background Transrectal ultrasound (TRUS) guided biopsy for prostate cancer is prone to random and systemic error and has been shown to have a negative predictive value of 70%. PRECISION and PRECISE are among the first randomised studies to evaluate the ... ...

    Abstract Background Transrectal ultrasound (TRUS) guided biopsy for prostate cancer is prone to random and systemic error and has been shown to have a negative predictive value of 70%. PRECISION and PRECISE are among the first randomised studies to evaluate the new MRI-targeted biopsy (MRI-TB) pathway with a non-paired design to detect clinically significant prostate cancer and avoid unnecessary treatment. The trials' results individually demonstrated non-inferiority of MRI-TB compared to TRUS biopsy. An individual patient data (IPD) meta-analysis was planned from the outset of the two trials in parallel and this IPD meta-analysis aims to further elucidate the utility of MRI-TB as the optimal diagnostic pathway for prostate cancer. Methods and materials This study is registered on PROSPERO (CRD42021249263). A search of Medline, Embase, Cochrane Central Register of Registered Trials (CENTRAL), Web of Science, and ClinicalTrials.gov was performed up until 4th February 2021. Only randomised controlled trials (PRECISE, PRECISION and other eligible trials) comparing the MRI-targeted biopsy pathway and traditional TRUS biopsy pathway will be included. The primary outcome of the review is the proportion of men diagnosed with clinically significant prostate cancer in each arm (Gleason ≥ 3+4 = 7). IPD and study-level data and characteristics will be sought from eligible studies. Analyses will be done primarily using an intention-to-treat approach, and a one-step IPD meta-analysis will be performed using generalised linear mixed models. A non-inferiority margin of 5 percentage points will be used. Heterogeneity will be quantified using the variance parameters from the mixed model. If there is sufficient data, we will investigate heterogeneity by exploring the effect of the different conducts of MRIs, learning curves of MRI reporting and MRI targeted biopsies. Trial registration This systematic review is registered on PROSPERO (CRD42021249263).
    Keywords Medicine ; R ; Science ; Q
    Subject code 610
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Development and external validation of prognostic models for COVID-19 to support risk stratification in secondary care

    Dhruv Parekh / Elizabeth Sapey / Krishnarajah Nirantharakumar / Nicola J Adderley / Rashan Haniffa / Alastair K Denniston / Joht Singh Chandan / Yemisi Takwoingi / Suzy Gallier / Christopher Sainsbury / Krishna Gokhale / Carly Welch / Malcolm James Price / Thomas Taverner / David Greenwood / Isaac Hosier

    BMJ Open, Vol 12, Iss

    2022  Volume 1

    Keywords Medicine ; R
    Language English
    Publishing date 2022-01-01T00:00:00Z
    Publisher BMJ Publishing Group
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  4. Article ; Online: Rapid antigen-based and rapid molecular tests for the detection of SARS-CoV-2

    Areti Angeliki Veroniki / Andrea C. Tricco / Jennifer Watt / Sofia Tsokani / Paul A. Khan / Charlene Soobiah / Ahmed Negm / Amanda Doherty-Kirby / Paul Taylor / Carole Lunny / Jessie McGowan / Julian Little / Patrick Mallon / David Moher / Sabrina Wong / Jacqueline Dinnes / Yemisi Takwoingi / Lynora Saxinger / Adrienne Chan /
    Wanrudee Isaranuwatchai / Bryn Lander / Adrienne Meyers / Guillaume Poliquin / Sharon E. Straus

    BMC Medicine, Vol 21, Iss 1, Pp 1-

    a rapid review with network meta-analysis of diagnostic test accuracy studies

    2023  Volume 11

    Abstract: Abstract Background The global spread of COVID-19 created an explosion in rapid tests with results in < 1 hour, but their relative performance characteristics are not fully understood yet. Our aim was to determine the most sensitive and specific rapid ... ...

    Abstract Abstract Background The global spread of COVID-19 created an explosion in rapid tests with results in < 1 hour, but their relative performance characteristics are not fully understood yet. Our aim was to determine the most sensitive and specific rapid test for the diagnosis of SARS-CoV-2. Methods Design: Rapid review and diagnostic test accuracy network meta-analysis (DTA-NMA). Eligibility criteria: Randomized controlled trials (RCTs) and observational studies assessing rapid antigen and/or rapid molecular test(s) to detect SARS-CoV-2 in participants of any age, suspected or not with SARS-CoV-2 infection. Information sources: Embase, MEDLINE, and Cochrane Central Register of Controlled Trials, up to September 12, 2021. Outcome measures: Sensitivity and specificity of rapid antigen and molecular tests suitable for detecting SARS-CoV-2. Data extraction and risk of bias assessment: Screening of literature search results was conducted by one reviewer; data abstraction was completed by one reviewer and independently verified by a second reviewer. Risk of bias was not assessed in the included studies. Data synthesis: Random-effects meta-analysis and DTA-NMA. Results We included 93 studies (reported in 88 articles) relating to 36 rapid antigen tests in 104,961 participants and 23 rapid molecular tests in 10,449 participants. Overall, rapid antigen tests had a sensitivity of 0.75 (95% confidence interval 0.70–0.79) and specificity of 0.99 (0.98–0.99). Rapid antigen test sensitivity was higher when nasal or combined samples (e.g., combinations of nose, throat, mouth, or saliva samples) were used, but lower when nasopharyngeal samples were used, and in those classified as asymptomatic at the time of testing. Rapid molecular tests may result in fewer false negatives than rapid antigen tests (sensitivity: 0.93, 0.88–0.96; specificity: 0.98, 0.97–0.99). The tests with the highest sensitivity and specificity estimates were the Xpert Xpress rapid molecular test by Cepheid (sensitivity: 0.99, 0.83–1.00; specificity: 0.97, ...
    Keywords Diagnostic test accuracy ; Rapid tests ; COVID-19 ; SARS-CoV-2 ; Network meta-analysis ; Rapid review ; Medicine ; R
    Subject code 150
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article ; Online: Prognostic models for predicting incident or recurrent atrial fibrillation

    Janine Dretzke / Naomi Chuchu / Winnie Chua / Larissa Fabritz / Susan Bayliss / Dipak Kotecha / Jonathan J. Deeks / Paulus Kirchhof / Yemisi Takwoingi

    Systematic Reviews, Vol 8, Iss 1, Pp 1-

    protocol for a systematic review

    2019  Volume 6

    Abstract: Abstract Background Atrial fibrillation (AF) is the arrhythmia most commonly diagnosed in clinical practice. It is associated with significant morbidity and mortality. Prevalence of AF and complications of AF, estimated by hospitalisations, have ... ...

    Abstract Abstract Background Atrial fibrillation (AF) is the arrhythmia most commonly diagnosed in clinical practice. It is associated with significant morbidity and mortality. Prevalence of AF and complications of AF, estimated by hospitalisations, have increased dramatically in the last decade. Being able to predict AF would allow tailoring of management strategies and a focus on primary or secondary prevention. Models predicting recurrent AF would have particular clinical use for the selection of rhythm control therapy. There are existing prognostic models which combine several predictors or risk factors to generate an individualised estimate of risk of AF. The aim of this systematic review is to summarise and compare model performance measures and predictive accuracy across different models and populations at risk of developing incident or recurrent AF. Methods Methods tailored to systematic reviews of prognostic models will be used for study identification, risk of bias assessment and synthesis. Studies will be eligible for inclusion where they report an internally or externally validated model. The quality of studies reporting a prognostic model will be assessed using the Prediction Study Risk Of Bias Assessment Tool (PROBAST). Studies will be narratively described and included variables and predictive accuracy compared across different models and populations. Meta-analysis of model performance measures for models validated in similar populations will be considered where possible. Discussion To the best of our knowledge, this will be the first systematic review to collate evidence from all studies reporting on validated prognostic models, or on the impact of such models, in any population at risk of incident or recurrent AF. The review may identify models which are suitable for impact assessment in clinical practice. Should gaps in the evidence be identified, research recommendations relating to model development, validation or impact assessment will be made. Findings will be considered in the context of any models ...
    Keywords Atrial fibrillation ; Incidence ; Recurrence ; Prognostic model ; Risk score ; Model validation ; Medicine ; R
    Subject code 310
    Language English
    Publishing date 2019-08-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Article ; Online: Magnetic resonance imaging for detecting root avulsions in traumatic adult brachial plexus injuries

    Ryckie G. Wade / Yemisi Takwoingi / Justin C. R. Wormald / John P. Ridgway / Steven Tanner / James J. Rankine / Grainne Bourke

    Systematic Reviews, Vol 7, Iss 1, Pp 1-

    protocol for a systematic review of diagnostic accuracy

    2018  Volume 6

    Abstract: Abstract Background Adult brachial plexus injuries (BPI) are becoming more common. The reconstruction and prognosis of pre-ganglionic injuries (root avulsions) are different to other types of BPI injury. Preoperative magnetic resonance imaging (MRI) is ... ...

    Abstract Abstract Background Adult brachial plexus injuries (BPI) are becoming more common. The reconstruction and prognosis of pre-ganglionic injuries (root avulsions) are different to other types of BPI injury. Preoperative magnetic resonance imaging (MRI) is being used to identify root avulsions, but the evidence from studies of its diagnostic accuracy are conflicting. Therefore, a systematic review is needed to address uncertainty about the accuracy of MRI and to guide future research. Methods We will conduct a systematic search of electronic databases alongside reference tracking. We will include studies of adults with traumatic BPI which report the accuracy of preoperative MRI (index test) against surgical exploration of the roots of the brachial plexus (reference standard) for detecting either of the two target conditions (any root avulsion or any pseudomeningocoele as a surrogate marker of root avulsion). We will exclude case reports, articles considering bilateral injuries and studies where the number of true positives, false positives, false negatives and true negatives cannot be derived. The methodological quality of the included studies will be assessed using a tailored version of the QUADAS-2 tool. Where possible, a bivariate model will be used for meta-analysis to obtain summary sensitivities and specificities for both target conditions. We will investigate heterogeneity in the performance of MRI according to field strength and the risk of bias if data permits. Discussion This review will summarise the current diagnostic accuracy of MRI for adult BPI, identify shortcomings and gaps in the literature and so help to guide future research. Systematic review registration PROSPERO CRD42016049702.
    Keywords Review ; Diagnostic test accuracy ; Root avulsion ; Pre-ganglionic ; Brachial plexus ; Magnetic resonance imaging ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2018-05-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article ; Online: New technologies for diagnosing active TB

    Alice Halliday / Pooja Jain / Long Hoang / Robert Parker / Mica Tolosa-Wright / Tereza Masonou / Nathan Green / Aime Boakye / Yemisi Takwoingi / Shea Hamilton / Vinay Mandagere / Anastasia Fries / Lachlan Coin / Jon Deeks / Peter J White / Michael Levin / Peter Beverley / Onn Min Kon / Ajit Lalvani

    Efficacy and Mechanism Evaluation, Vol 8, Iss

    the VANTDET diagnostic accuracy study

    2021  Volume 5

    Abstract: Background: Tuberculosis (TB) is a devastating disease for which new diagnostic tests are desperately needed. Objective: To validate promising new technologies [namely whole-blood transcriptomics, proteomics, flow cytometry and quantitative reverse ... ...

    Abstract Background: Tuberculosis (TB) is a devastating disease for which new diagnostic tests are desperately needed. Objective: To validate promising new technologies [namely whole-blood transcriptomics, proteomics, flow cytometry and quantitative reverse transcription-polymerase chain reaction (qRT-PCR)] and existing signatures for the detection of active TB in samples obtained from individuals with suspected active TB. Design: Four substudies, each of which used samples from the biobank collected as part of the interferon gamma release assay (IGRA) in the Diagnostic Evaluation of Active TB study, which was a prospective cohort of patients recruited with suspected TB. Setting: Secondary care. Participants: Adults aged ≥ 16 years presenting as inpatients or outpatients at 12 NHS hospital trusts in London, Slough, Oxford, Leicester and Birmingham, with suspected active TB. Interventions: New tests using genome-wide gene expression microarray (transcriptomics), surface-enhanced laser desorption ionisation time-of-flight mass spectrometry/liquid chromatography–mass spectrometry (proteomics), flow cytometry or qRT-PCR. Main outcome measures: Area under the curve (AUC), sensitivity and specificity were calculated to determine diagnostic accuracy. Positive and negative predictive values were calculated in some cases. A decision tree model was developed to calculate the incremental costs and quality-adjusted life-years of changing from current practice to using the novels tests. Results: The project, and four substudies that assessed the previously published signatures, measured each of the new technologies and performed a health economic analysis in which the best-performing tests were evaluated for cost-effectiveness. The diagnostic accuracy of the transcriptomic tests ranged from an AUC of 0.81 to 0.84 for detecting all TB in our cohort. The performance for detecting culture-confirmed TB or pulmonary TB was better than for highly probable TB or extrapulmonary tuberculosis (EPTB), but was not high enough to be clinically ...
    Keywords tuberculosis ; mycobacterium tuberculosis ; diagnostic test ; transcriptomic ; proteomics ; cellular immune ; signatures ; validation ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2021-04-01T00:00:00Z
    Publisher NIHR Journals Library
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  8. Article ; Online: The comparative diagnostic accuracy of the Mini Mental State Examination (MMSE) and the General Practitioner assessment of Cognition (GPCOG) for identifying dementia in primary care

    Harriet A. Hunt / Sanne Van Kampen / Yemisi Takwoingi / David J. Llewellyn / Mark Pearson / Christopher J. Hyde

    Diagnostic and Prognostic Research, Vol 1, Iss 1, Pp 1-

    a systematic review protocol

    2017  Volume 6

    Abstract: Abstract Background Improved dementia identification is a global health priority, and general practitioners (GPs) are often the first point of contact for people with concerns about their cognition. However, GPs often express uncertainty in using ... ...

    Abstract Abstract Background Improved dementia identification is a global health priority, and general practitioners (GPs) are often the first point of contact for people with concerns about their cognition. However, GPs often express uncertainty in using assessment tools and the evidence based on which tests are most accurate in identifying dementia is unclear. In particular, there is little certainty around how the accuracy of available brief cognitive assessments compares within a clinical family practice setting. Grounded in existing brief cognitive assessment evidence, we will compare the diagnostic test accuracy of the Mini Mental State Examination (MMSE) to the General Practitioner Assessment of Cognition (GPCOG) against the best available reference standard when used within a family practice setting. Methods We will employ robust systematic review methods to assess studies of diagnostic accuracy where both the MMSE and GPCOG have been evaluated as direct comparisons, i.e. within the same study population. This approach will enable us to minimise between-study heterogeneity, to eliminate the risk of bias due to confounding and increase the opportunity to make clinically useful and useable comparisons of diagnostic accuracy across both the MMSE and GPCOG. This systematic review will be conducted using a pragmatic search strategy, refining searches that build upon studies identified as part of our overview of systematic reviews of the diagnostic accuracy of brief cognitive assessments for identifying dementia in primary care. Discussion Through this systematic review, we aim to improve existing evidence on how the diagnostic accuracy of MMSE and GPCOG compares when used to identify dementia within the family practice setting. We also aim to make clinical practice recommendations based upon the variations in diagnostic accuracy identified between the MMSE and GPCOG.
    Keywords Dementia ; Brief cognitive assessment ; Diagnostic accuracy ; Primary care ; Systematic review ; Medicine (General) ; R5-920
    Subject code 360
    Language English
    Publishing date 2017-06-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Lead-I ECG for detecting atrial fibrillation in patients attending primary care with an irregular pulse using single-time point testing

    Rui Duarte / Angela Stainthorpe / James Mahon / Janette Greenhalgh / Marty Richardson / Sarah Nevitt / Eleanor Kotas / Angela Boland / Howard Thom / Tom Marshall / Mark Hall / Yemisi Takwoingi

    PLoS ONE, Vol 14, Iss 12, p e

    A systematic review and economic evaluation.

    2019  Volume 0226671

    Abstract: Background Atrial fibrillation (AF) is the most common type of cardiac arrhythmia and is associated with increased risk of stroke and congestive heart failure. Lead-I electrocardiogram (ECG) devices are handheld instruments that can detect AF at a single- ...

    Abstract Background Atrial fibrillation (AF) is the most common type of cardiac arrhythmia and is associated with increased risk of stroke and congestive heart failure. Lead-I electrocardiogram (ECG) devices are handheld instruments that can detect AF at a single-time point. Purpose To assess the diagnostic test accuracy, clinical impact and cost effectiveness of single-time point lead-I ECG devices compared with manual pulse palpation (MPP) followed by a 12-lead ECG for the detection of AF in symptomatic primary care patients with an irregular pulse. Methods Electronic databases (MEDLINE, MEDLINE Epub Ahead of Print and MEDLINE In-Process, EMBASE, PubMed and Cochrane Databases of Systematic Reviews, Cochrane Central Database of Controlled Trials, Database of Abstracts of Reviews of Effects, Health Technology Assessment Database) were searched to March 2018. Two reviewers screened the search results, extracted data and assessed study quality. Summary estimates of diagnostic accuracy were calculated using bivariate models. Cost-effectiveness was evaluated using an economic model consisting of a decision tree and two cohort Markov models. Results Diagnostic accuracy The diagnostic accuracy (13 publications reporting on nine studies) and clinical impact (24 publications reporting on 19 studies) results are derived from an asymptomatic population (used as a proxy for people with signs or symptoms of AF). The summary sensitivity of lead-I ECG devices was 93.9% (95% confidence interval [CI]: 86.2% to 97.4%) and summary specificity was 96.5% (95% CI: 90.4% to 98.8%). Cost effectiveness The de novo economic model yielded incremental cost effectiveness ratios (ICERs) per quality adjusted life year (QALY) gained. The results of the pairwise analysis show that all lead-I ECG devices generate ICERs per QALY gained below the £20,000-£30,000 threshold. Kardia Mobile is the most cost effective option in a full incremental analysis. Lead-I ECG tests may identify more AF cases than the standard diagnostic pathway. This comes at a higher cost but with greater patient benefit in terms of mortality and quality of life. Limitations No published data evaluating the diagnostic accuracy, clinical impact or cost effectiveness of lead-I ECG devices for the target population are available. Conclusions The use of single-time point lead-I ECG devices in primary care for the detection of AF in people with signs or symptoms of AF and an irregular pulse appears to be a cost effective use of NHS resources compared with MPP followed by a 12-lead ECG, given the assumptions used in the base case model. Registration The protocol for this review is registered on PROSPERO as CRD42018090375.
    Keywords Medicine ; R ; Science ; Q
    Subject code 310
    Language English
    Publishing date 2019-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Conducting invasive urodynamics in primary care

    Sarah Milosevic / Natalie Joseph-Williams / Bethan Pell / Elizabeth Cain / Robyn Hackett / Ffion Murdoch / Haroon Ahmed / A. Joy Allen / Alison Bray / Samantha Clarke / Marcus J. Drake / Michael Drinnan / Kerenza Hood / Tom Schatzberger / Yemisi Takwoingi / Emma Thomas-Jones / Raymond White / Adrian Edwards / Chris Harding

    Diagnostic and Prognostic Research, Vol 5, Iss 1, Pp 1-

    qualitative interview study examining experiences of patients and healthcare professionals

    2021  Volume 9

    Abstract: Abstract Background Invasive urodynamics is used to investigate the causes of lower urinary tract symptoms; a procedure usually conducted in secondary care by specialist practitioners. No study has yet investigated the feasibility of carrying out this ... ...

    Abstract Abstract Background Invasive urodynamics is used to investigate the causes of lower urinary tract symptoms; a procedure usually conducted in secondary care by specialist practitioners. No study has yet investigated the feasibility of carrying out this procedure in a non-specialist setting. Therefore, the aim of this study was to explore, using qualitative methodology, the feasibility and acceptability of conducting invasive urodynamic testing in primary care. Methods Semi-structured interviews were conducted during the pilot phase of the PriMUS study, in which men experiencing bothersome lower urinary tract symptoms underwent invasive urodynamic testing along with a series of simple index tests in a primary care setting. Interviewees were 25 patients invited to take part in the PriMUS study and 18 healthcare professionals involved in study delivery. Interviews were audio-recorded, transcribed verbatim and analysed using a framework approach. Results Patients generally found the urodynamic procedure acceptable and valued the primary care setting due to its increased accessibility and familiarity. Despite some logistical issues, facilitating invasive urodynamic testing in primary care was also a positive experience for urodynamic nurses. Initial issues with general practitioners receiving and utilising the results of urodynamic testing may have limited the potential benefit to some patients. Effective approaches to study recruitment included emphasising the benefits of the urodynamic test and maintaining contact with potential participants by telephone. Patients’ relationship with their general practitioner was an important influence on study participation. Conclusions Conducting invasive urodynamics in primary care is feasible and acceptable and has the potential to benefit patients. Facilitating study procedures in a familiar primary care setting can impact positively on research recruitment. However, it is vital that there is a support network for urodynamic nurses and expertise available to help interpret ...
    Keywords Urodynamics ; Primary care ; Lower urinary tract symptoms ; Qualitative research ; Medicine (General) ; R5-920
    Subject code 360
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher BMC
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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