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  1. Article ; Online: Dual Antiplatelet Therapy for the Acute Management and Long-term Secondary Prevention of Ischemic Stroke and Transient Ischemic Attack, An Updated Review.

    Chan, Bernard P L / Wong, Lily Y H / Tan, Benjamin Y Q / Yeo, Leonard L L / Venketasubramanian, Narayanaswamy

    Journal of cardiovascular development and disease

    2024  Volume 11, Issue 2

    Abstract: To improve the efficacy over antiplatelet monotherapy, dual antiplatelet therapy (DAPT) has been increasingly adopted in the management of non-cardioembolic stroke. For minor ischemic stroke and high-risk transient ischemic attack, the aspirin- ... ...

    Abstract To improve the efficacy over antiplatelet monotherapy, dual antiplatelet therapy (DAPT) has been increasingly adopted in the management of non-cardioembolic stroke. For minor ischemic stroke and high-risk transient ischemic attack, the aspirin-clopidogrel combination is now recommended for acute short-term treatment, whereas aspirin-ticagrelor combination may be considered in selected patients, especially those with resistance to clopidogrel. For long-term stroke prevention, aspirin-dipyridamole combination has been used as an alternative to antiplatelet monotherapy, and aspirin or clopidogrel combined with cilostazole may be prescribed for added protection in high-risk patients. In this paper, we review the development of DAPT from a historical perspective and describe the findings from major clinical trials published up until the end of 2023. Using the 2021 American Heart Association guideline for secondary stroke prevention as a basis for our recommendations, we further discuss areas of controversy and more recent developments to provide an updated review for clinicians to consider in their daily practice.
    Language English
    Publishing date 2024-01-31
    Publishing country Switzerland
    Document type Journal Article ; Review
    ZDB-ID 2777082-5
    ISSN 2308-3425 ; 2308-3425
    ISSN (online) 2308-3425
    ISSN 2308-3425
    DOI 10.3390/jcdd11020048
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Multiomics reveals glutathione metabolism as a driver of bimodality during stem cell aging.

    Benjamin, Daniel I / Brett, Jamie O / Both, Pieter / Benjamin, Joel S / Ishak, Heather L / Kang, Jengmin / Kim, Soochi / Chung, Mingyu / Arjona, Marina / Nutter, Christopher W / Tan, Jenna H / Krishnan, Ananya K / Dulay, Hunter / Louie, Sharon M / de Morree, Antoine / Nomura, Daniel K / Rando, Thomas A

    Cell metabolism

    2023  Volume 35, Issue 3, Page(s) 472–486.e6

    Abstract: With age, skeletal muscle stem cells (MuSCs) activate out of quiescence more slowly and with increased death, leading to defective muscle repair. To explore the molecular underpinnings of these defects, we combined multiomics, single-cell measurements, ... ...

    Abstract With age, skeletal muscle stem cells (MuSCs) activate out of quiescence more slowly and with increased death, leading to defective muscle repair. To explore the molecular underpinnings of these defects, we combined multiomics, single-cell measurements, and functional testing of MuSCs from young and old mice. The multiomics approach allowed us to assess which changes are causal, which are compensatory, and which are simply correlative. We identified glutathione (GSH) metabolism as perturbed in old MuSCs, with both causal and compensatory components. Contrary to young MuSCs, old MuSCs exhibit a population dichotomy composed of GSH
    MeSH term(s) Mice ; Animals ; Muscle, Skeletal/metabolism ; Multiomics ; Stem Cells/metabolism ; Cellular Senescence ; Aging/physiology
    Language English
    Publishing date 2023-02-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural ; Research Support, U.S. Gov't, Non-P.H.S.
    ZDB-ID 2176834-1
    ISSN 1932-7420 ; 1550-4131
    ISSN (online) 1932-7420
    ISSN 1550-4131
    DOI 10.1016/j.cmet.2023.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Influence of body composition measures on chyle leak after oesophagectomy.

    Halle-Smith, James M / Siddaiah-Subramanya, Manjunath / Ghoneim, Abdulrahman / Almonib, Ahmed / Tan, Benjamin H L

    Journal of thoracic disease

    2022  Volume 14, Issue 4, Page(s) 877–883

    Abstract: Background: Chyle leak (CL) is an infrequent but potentially serious complication of oesophagectomy. Sarcopenia is an increasingly recognised prognostic factor in oesophageal cancer surgery. The aim of this study was to identify the influence of body ... ...

    Abstract Background: Chyle leak (CL) is an infrequent but potentially serious complication of oesophagectomy. Sarcopenia is an increasingly recognised prognostic factor in oesophageal cancer surgery. The aim of this study was to identify the influence of body composition measures on CL following oesophagectomy.
    Methods: Patients who developed CL after oesophagectomy between January 2006-December 2020 were identified retrospectively from a prospectively maintained dataset. A control group of patients undergoing oesophagectomy, who did not experience chyle leak during the same time period, was also collected. Relationships between CL and demographics, operative factors and body composition measures were investigated as primary outcomes. Risk factors for severe CL were evaluated as a secondary outcome.
    Results: There were 26 patients who developed a CL following an oesophagectomy. On univariate analysis, preoperative body mass index (BMI) (P=0.001), subcutaneous fat index (P=0.001) and total fat index (P=0.004) were significantly associated with CL. On multivariate analysis, a lower preoperative subcutaneous fat index was a significant independent predictor of CL (P=0.003). Sarcopenia, as an overall measure, was not found to be a significant predictor of developing CLs. No significant predictors of severe CL were identified.
    Conclusions: A reduced preoperative BMI and body fat composition are risk factors for CL after oesophagectomy. Sarcopenia does not predict either the occurrence or severity of CL. This presents potentially modifiable risk factors for CL after oesophagectomy and emphasises the importance of physiological and nutritional optimisation before oesophagectomy.
    Language English
    Publishing date 2022-04-28
    Publishing country China
    Document type Journal Article
    ZDB-ID 2573571-8
    ISSN 2077-6624 ; 2072-1439
    ISSN (online) 2077-6624
    ISSN 2072-1439
    DOI 10.21037/jtd-21-1580
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Correction to: Body composition assessment and sarcopenia in patients with gastric cancer: a systematic review and meta-analysis.

    Kamarajah, Sivesh K / Bundred, James / Tan, Benjamin H L

    Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

    2019  Volume 22, Issue 3, Page(s) 645–650

    Abstract: In the original publication of this article, most of the reference citations in Tables 1 and 2 were published incorrectly. The corrected tables are given in this correction. ...

    Abstract In the original publication of this article, most of the reference citations in Tables 1 and 2 were published incorrectly. The corrected tables are given in this correction.
    Language English
    Publishing date 2019-03-01
    Publishing country Japan
    Document type Journal Article ; Published Erratum
    ZDB-ID 1463526-4
    ISSN 1436-3305 ; 1436-3291
    ISSN (online) 1436-3305
    ISSN 1436-3291
    DOI 10.1007/s10120-019-00939-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Meta-analysis: Prevalence of significant or advanced fibrosis in adults with alpha-1-antitrypsin deficiency.

    Huang, Daniel Q / Chan, Kai En / Tan, Caitlyn / Zeng, Rebecca Wenling / Koh, Benjamin / Ong, Elden Yen Hng / Ong, Charlotte Chung Hui / Ong, Christen En Ya / Tan, Darren J H / Lim, Wen Hui / Cho, Elina / Tan, Eunice X X / Teng, Margaret L P / Ng, Cheng Han / Nah, Benjamin / Lim, Mei Chin / Muthiah, Mark / Clark, Virginia C / Loomba, Rohit

    Alimentary pharmacology & therapeutics

    2023  Volume 58, Issue 2, Page(s) 152–158

    Abstract: Background: The prevalence of liver fibrosis detected by non-invasive imaging in alpha-1-antitrypsin (AAT) deficiency has not been systematically assessed.: Aims: We conducted a systematic review and meta-analysis to determine the prevalence of ... ...

    Abstract Background: The prevalence of liver fibrosis detected by non-invasive imaging in alpha-1-antitrypsin (AAT) deficiency has not been systematically assessed.
    Aims: We conducted a systematic review and meta-analysis to determine the prevalence of significant fibrosis and advanced fibrosis in AAT deficiency based on non-invasive imaging.
    Methods: Medline and Embase electronic databases were searched for studies from inception to 13 November 2022 that provided data for the prevalence of fibrosis in adults with AAT deficiency. A generalised linear mixed model with Clopper-Pearson intervals was used to pool single-arm outcomes.
    Results: Of the 214 records identified, 8 studies were included. Five studies assessed fibrosis using vibration-controlled transient elastography. The prevalence of significant fibrosis (defined as ≥7.1 kPA) in Z homozygosity, Z heterozygosity and non-carrier status was 22.10% (five studies, 95% CI: 17.07-28.12), 9.24% (three studies, 95% CI: 4.68-17.45) and 5.38% (one study, 95% CI: 3.27-8.73), respectively, p < 0.0001, and the prevalence of advanced fibrosis (defined as ≥9.5 kPa) was 8.13% (five studies, 95% CI: 4.60-13.96), 2.96% (three studies, 95% CI: 1.49-5.81) and 1.08% (one study, 95% CI: 0.35-3.28), respectively, p = 0.003. There were limited data regarding the use of magnetic resonance elastography or acoustic radiation force impulse to assess for fibrosis.
    Conclusion: More than one in five adult individuals with AAT deficiency and Z homozygosity harbour significant fibrosis, and nearly 1 in 10 harbours advanced fibrosis. The risk of fibrosis increases incrementally with the frequency of Pi*Z mutations.
    MeSH term(s) Adult ; Humans ; Prevalence ; alpha 1-Antitrypsin Deficiency/complications ; alpha 1-Antitrypsin Deficiency/diagnosis ; alpha 1-Antitrypsin Deficiency/epidemiology ; Liver Cirrhosis/diagnosis ; Liver Cirrhosis/epidemiology ; Liver Cirrhosis/etiology
    Language English
    Publishing date 2023-04-23
    Publishing country England
    Document type Systematic Review ; Meta-Analysis ; Journal Article ; Review ; Research Support, Non-U.S. Gov't ; Research Support, N.I.H., Extramural
    ZDB-ID 639012-2
    ISSN 1365-2036 ; 0269-2813 ; 0953-0673
    ISSN (online) 1365-2036
    ISSN 0269-2813 ; 0953-0673
    DOI 10.1111/apt.17516
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Clustering of Environmental Parameters and the Risk of Acute Ischaemic Stroke.

    Koo, Geraldine P Y / Zheng, Huili / Aik, Joel C L / Tan, Benjamin Y Q / Sharma, Vijay K / Sia, Ching Hui / Ong, Marcus E H / Ho, Andrew F W

    International journal of environmental research and public health

    2023  Volume 20, Issue 6

    Abstract: Acute ischaemic stroke (AIS) risk on days with similar environmental profiles remains unknown. We investigated the association between clusters of days with similar environmental parameters and AIS incidence in Singapore. We grouped calendar days from ... ...

    Abstract Acute ischaemic stroke (AIS) risk on days with similar environmental profiles remains unknown. We investigated the association between clusters of days with similar environmental parameters and AIS incidence in Singapore. We grouped calendar days from 2010 to 2015 with similar rainfall, temperature, wind speed, and Pollutant Standards Index (PSI) using k-means clustering. Three distinct clusters were formed 'Cluster 1' containing high wind speed, 'Cluster 2' having high rainfall, and 'Cluster 3' having high temperatures and PSI. We aggregated the number of AIS episodes over the same period with the clusters and analysed their association using a conditional Poisson regression in a time-stratified case-crossover design. Comparing the three clusters, Cluster 3 had the highest AIS occurrence (IRR 1.09; 95% confidence interval (CI) 1.05-1.13), with no significant difference between Clusters 1 and 2. Subgroup analyses in Cluster 3 showed that AIS risk was amplified in the elderly (≥65 years old), non-smokers, and those without a history of ischaemic heart disease/atrial fibrillation/vascular heart disease/peripheral vascular disease. In conclusion, we found that AIS incidence may be higher on days with higher temperatures and PSI. These findings have important public health implications for AIS prevention and health services delivery during at-risk days, such as during the seasonal transboundary haze.
    MeSH term(s) Aged ; Humans ; Air Pollution/analysis ; Brain Ischemia/epidemiology ; Cluster Analysis ; Environmental Pollutants ; Ischemic Stroke ; Seasons ; Stroke/epidemiology ; Stroke/etiology ; Cross-Over Studies
    Chemical Substances Environmental Pollutants
    Language English
    Publishing date 2023-03-11
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph20064979
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article ; Online: The use of colchicine as an anti-inflammatory agent for stroke prevention in patients with coronary artery disease: a systematic review and meta-analysis.

    Goh, Claire X Y / Tan, Ying Kiat / Tan, Choon Han / Leow, Aloysius S T / Ho, Jamie S Y / Tan, Natalie H W / Goh, Sherill / Ho, Andrew F W / Sharma, Vijay K / Chan, Bernard P L / Yeo, Leonard L L / Tan, Benjamin Y Q

    Journal of thrombosis and thrombolysis

    2022  Volume 54, Issue 1, Page(s) 183–190

    Abstract: Objective: The primary objective is to evaluate the use of colchicine as an anti-inflammatory agent for stroke prevention in patients with coronary artery disease.: Background: There has been a rising number of randomized controlled trials conducted ... ...

    Abstract Objective: The primary objective is to evaluate the use of colchicine as an anti-inflammatory agent for stroke prevention in patients with coronary artery disease.
    Background: There has been a rising number of randomized controlled trials conducted in patients with coronary artery disease on the use of colchicine in reducing cardiovascular complications. Recent publications suggest colchicine reduces the risk of stroke and other cardiovascular events.
    Methods: We performed a systematic review of known trials in the current literature to characterize the clinical characteristics and outcomes of colchicine treatment in patients with coronary artery disease. A literature search was performed in PubMed, Embase and SCOPUS using a suitable keyword search strategy from inception to 4 June 2021. All studies evaluating cardiovascular outcomes of colchicine treatment in patients with coronary artery disease were included.
    Results: The systemic review included 5 randomized controlled trials assessing a total of 11,790 patients. Majority of studies used a colchicine dosing regimen of 0.5 mg once daily, with the median follow-up duration ranging from 6 to 36 months. Meta-analytic estimates for stroke incidence highlighted a statistically significant benefit for patients that were administered colchicine compared to placebo (OR 0.47, 95% CI 0.27-0.81, p = 0.006), and a non-significant benefit for myocardial infarction. There was no significant association between colchicine treatment and the adverse effects of gastrointestinal symptoms and myopathy/myalgia.
    Conclusions: The use of colchicine reduces the risk of stroke in patients with a history of coronary artery disease, without a significant increase in gastrointestinal and myopathy/myalgia adverse effects.
    MeSH term(s) Anti-Inflammatory Agents/therapeutic use ; Colchicine/therapeutic use ; Coronary Artery Disease/complications ; Coronary Artery Disease/drug therapy ; Humans ; Myalgia/chemically induced ; Myalgia/drug therapy ; Stroke/chemically induced ; Stroke/prevention & control
    Chemical Substances Anti-Inflammatory Agents ; Colchicine (SML2Y3J35T)
    Language English
    Publishing date 2022-05-10
    Publishing country Netherlands
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 1230645-9
    ISSN 1573-742X ; 0929-5305
    ISSN (online) 1573-742X
    ISSN 0929-5305
    DOI 10.1007/s11239-022-02659-9
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Body composition assessment and sarcopenia in patients with gastric cancer: a systematic review and meta-analysis.

    Kamarajah, Sivesh K / Bundred, James / Tan, Benjamin H L

    Gastric cancer : official journal of the International Gastric Cancer Association and the Japanese Gastric Cancer Association

    2018  Volume 22, Issue 1, Page(s) 10–22

    Abstract: Introduction: There has recently been increased interest in the assessment of body composition in patients with gastric cancer for the purpose of prognostication. This systematic review and meta-analysis aim to evaluate the current literature on body ... ...

    Abstract Introduction: There has recently been increased interest in the assessment of body composition in patients with gastric cancer for the purpose of prognostication. This systematic review and meta-analysis aim to evaluate the current literature on body composition assessment in patients with gastric cancer and its impact on peri-operative outcomes.
    Methods: A systematic literature search was conducted for studies reporting assessment of body composition in patients with gastric cancers. Meta-analysis of postoperative outcomes (overall and major complications, anastomotic leaks, pulmonary complications) and survival was performed using random effects models.
    Results: Thirty-nine studies reported the assessment of body composition in 8402 patients. Methods used to assess body composition in patients with gastric cancers were computerized tomography (n = 26), bioelectrical impedance analysis (n = 9), and dual-energy-X-ray-absorptiometry (n = 3). Only 21 studies reported the impact of pre-operative sarcopenia on post-operative outcomes. Sarcopenic patients have significantly higher rates of postoperative major complications (n = 12, OR 1.67, CI
    Conclusions: Assessment of body composition has the potential to become a clinically useful tool that could support decision-making in patients with gastric cancer. However, variation in methods of assessing and reporting body composition in this patient group limits assessment of current post-operative outcomes.
    MeSH term(s) Body Composition ; Humans ; Prognosis ; Risk Factors ; Sarcopenia/diagnostic imaging ; Sarcopenia/etiology ; Stomach Neoplasms/complications ; Stomach Neoplasms/mortality
    Language English
    Publishing date 2018-10-01
    Publishing country Japan
    Document type Journal Article ; Meta-Analysis ; Systematic Review
    ZDB-ID 1463526-4
    ISSN 1436-3305 ; 1436-3291
    ISSN (online) 1436-3305
    ISSN 1436-3291
    DOI 10.1007/s10120-018-0882-2
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Clustering of Environmental Parameters and the Risk of Acute Ischaemic Stroke

    Geraldine P. Y. Koo / Huili Zheng / Joel C. L. Aik / Benjamin Y. Q. Tan / Vijay K. Sharma / Ching Hui Sia / Marcus E. H. Ong / Andrew F. W. Ho

    International Journal of Environmental Research and Public Health, Vol 20, Iss 4979, p

    2023  Volume 4979

    Abstract: Acute ischaemic stroke (AIS) risk on days with similar environmental profiles remains unknown. We investigated the association between clusters of days with similar environmental parameters and AIS incidence in Singapore. We grouped calendar days from ... ...

    Abstract Acute ischaemic stroke (AIS) risk on days with similar environmental profiles remains unknown. We investigated the association between clusters of days with similar environmental parameters and AIS incidence in Singapore. We grouped calendar days from 2010 to 2015 with similar rainfall, temperature, wind speed, and Pollutant Standards Index (PSI) using k-means clustering. Three distinct clusters were formed ‘Cluster 1’ containing high wind speed, ‘Cluster 2’ having high rainfall, and ‘Cluster 3’ having high temperatures and PSI. We aggregated the number of AIS episodes over the same period with the clusters and analysed their association using a conditional Poisson regression in a time-stratified case-crossover design. Comparing the three clusters, Cluster 3 had the highest AIS occurrence (IRR 1.09; 95% confidence interval (CI) 1.05–1.13), with no significant difference between Clusters 1 and 2. Subgroup analyses in Cluster 3 showed that AIS risk was amplified in the elderly (≥65 years old), non-smokers, and those without a history of ischaemic heart disease/atrial fibrillation/vascular heart disease/peripheral vascular disease. In conclusion, we found that AIS incidence may be higher on days with higher temperatures and PSI. These findings have important public health implications for AIS prevention and health services delivery during at-risk days, such as during the seasonal transboundary haze.
    Keywords ischaemic stroke ; cerebrovascular disease ; air pollution ; environmental epidemiology ; clustering ; haze ; Medicine ; R
    Subject code 610
    Language English
    Publishing date 2023-03-01T00:00:00Z
    Publisher MDPI AG
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Intra-Arterial Adjunctive Medications for Acute Ischemic Stroke During Mechanical Thrombectomy: A Meta-Analysis.

    Chen, Vanessa H E / Lee, Grace K H / Tan, Choon-Han / Leow, Aloysius S T / Tan, Ying-Kiat / Goh, Claire / Gopinathan, Anil / Yang, Cunli / Chan, Bernard P L / Sharma, Vijay K / Tan, Benjamin Y Q / Yeo, Leonard L L

    Stroke

    2021  Volume 52, Issue 4, Page(s) 1192–1202

    Abstract: Background and purpose: In patients with acute ischemic stroke with large vessel occlusion, the role of intra-arterial adjunctive medications (IAMs), such as urokinase, tPA (tissue-type plasminogen activator), or glycoprotein IIb/IIIa inhibitors, during ...

    Abstract Background and purpose: In patients with acute ischemic stroke with large vessel occlusion, the role of intra-arterial adjunctive medications (IAMs), such as urokinase, tPA (tissue-type plasminogen activator), or glycoprotein IIb/IIIa inhibitors, during mechanical thrombectomy (MT) has not been clearly established. We aim to evaluate the efficacy and safety of concomitant or rescue IAM for acute ischemic stroke with large vessel occlusion patients undergoing MT.
    Methods: We searched Medline, Embase, and Cochrane Stroke Group Trials Register databases from inception until March 13, 2020. We analyzed all studies with patients diagnosed with acute ischemic stroke with large vessel occlusion in the anterior or posterior circulation that provided data for the two treatment arms, (1) MT+IAM and (2) MT only, and also reported on at least one of the following efficacy outcomes, recanalization and 90-day modified Rankin Scale, or safety outcomes, symptomatic intracranial hemorrhage and 90-day mortality. Data were collated in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines.
    Results: Sixteen nonrandomized observational studies with a total of 4581 patients were analyzed. MT only was performed in 3233 (70.6%) patients, while 1348 (29.4%) patients were treated with both MT and IAM. As compared with patients treated with MT alone, patients treated with combination therapy (MT+IAM) had a higher likelihood of achieving good functional outcome (risk ratio, 1.13 [95% CI, 1.03-1.24]) and a lower risk of 90-day mortality (risk ratio, 0.82 [95% CI, 0.72-0.94]). There was no significant difference in successful recanalization (risk ratio, 1.02 [95% CI, 0.99-1.06]) and symptomatic intracranial hemorrhage between the two groups (risk ratio, 1.13 [95% CI, 0.87-1.46]).
    Conclusions: In acute ischemic stroke with large vessel occlusion, the use of IAM together with MT may achieve better functional outcomes and lower mortality rates. Randomized controlled trials are warranted to establish the safety and efficacy of IAM as adjunctive treatment to MT.
    MeSH term(s) Fibrinolytic Agents/therapeutic use ; Humans ; Ischemic Stroke/therapy ; Thrombectomy/methods ; Thrombolytic Therapy/methods
    Chemical Substances Fibrinolytic Agents
    Language English
    Publishing date 2021-02-22
    Publishing country United States
    Document type Journal Article ; Meta-Analysis
    ZDB-ID 80381-9
    ISSN 1524-4628 ; 0039-2499 ; 0749-7954
    ISSN (online) 1524-4628
    ISSN 0039-2499 ; 0749-7954
    DOI 10.1161/STROKEAHA.120.031738
    Database MEDical Literature Analysis and Retrieval System OnLINE

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