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  1. Book ; Online: Quantum Geometry Induced Third Order Nonlinear Transport Responses

    Mandal, Debottam / Sarkar, Sanjay / Das, Kamal / Agarwal, Amit

    2023  

    Abstract: Nonlinear transport phenomena offer an exciting probe into the band geometry and symmetry properties of a system. Here, we present the complete theory of third-order nonlinear charge transport using the density matrix-based quantum kinetic framework. We ... ...

    Abstract Nonlinear transport phenomena offer an exciting probe into the band geometry and symmetry properties of a system. Here, we present the complete theory of third-order nonlinear charge transport using the density matrix-based quantum kinetic framework. We predict a unique intrinsic dissipative contribution and identify a novel intrinsic dissipationless Hall response. We demonstrate that these previously unexplored contributions arise in time-reversal symmetry-broken systems from band geometric quantities such as the Berry curvature and the symplectic connection. We prescribe a detailed symmetry dictionary to facilitate the discovery of these fundamental transport coefficients. Additionally, we unify our quantum kinetic results with the semiclassical wave-packet formalism to unveil all contributions to third-order charge transport. We illustrate our results in antiferromagnetic monolayer SrMnBi$_2$. Our study significantly advances the fundamental understanding of third-order responses.

    Comment: 15 pages, 4 figures, Comments are welcome
    Keywords Condensed Matter - Mesoscale and Nanoscale Physics ; Condensed Matter - Materials Science
    Publishing date 2023-10-29
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Mouse Models as Resources for Studying Infectious Diseases.

    Sarkar, Sanjay / Heise, Mark T

    Clinical therapeutics

    2019  Volume 41, Issue 10, Page(s) 1912–1922

    Abstract: Mouse models are important tools both for studying the pathogenesis of infectious diseases and for the preclinical evaluation of vaccines and therapies against a wide variety of human pathogens. The use of genetically defined inbred mouse strains, ... ...

    Abstract Mouse models are important tools both for studying the pathogenesis of infectious diseases and for the preclinical evaluation of vaccines and therapies against a wide variety of human pathogens. The use of genetically defined inbred mouse strains, humanized mice, and gene knockout mice has allowed the research community to explore how pathogens cause disease, define the role of specific host genes in either controlling or promoting disease, and identify potential targets for the prevention or treatment of a wide range of infectious agents. This review discusses several of the most commonly used mouse model systems, as well as new resources such as the Collaborative Cross as models for studying infectious diseases.
    MeSH term(s) Animals ; Communicable Diseases ; Disease Models, Animal ; Humans ; Mice ; Mice, Inbred Strains ; Xenograft Model Antitumor Assays
    Keywords covid19
    Language English
    Publishing date 2019-09-18
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Review
    ZDB-ID 603113-4
    ISSN 1879-114X ; 0149-2918
    ISSN (online) 1879-114X
    ISSN 0149-2918
    DOI 10.1016/j.clinthera.2019.08.010
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Effects of Scapular Angular Deviations on Potential for Rotator Cuff Tendon Mechanical Compression.

    Lawrence, Rebekah L / Richardson, Laura B / Bilodeau, Hannah L / Bonath, Dane J / Dahn, Daniel J / Em, Mary-Ann / Sarkar, Sanjay / Braman, Jonathan P / Ludewig, Paula M

    Orthopaedic journal of sports medicine

    2024  Volume 12, Issue 3, Page(s) 23259671231219023

    Abstract: Background: One proposed mechanism of rotator cuff disease is scapular motion impairments contributing to rotator cuff compression and subsequent degeneration.: Purpose: To model the effects of scapular angular deviations on rotator cuff tendon ... ...

    Abstract Background: One proposed mechanism of rotator cuff disease is scapular motion impairments contributing to rotator cuff compression and subsequent degeneration.
    Purpose: To model the effects of scapular angular deviations on rotator cuff tendon proximity for subacromial and internal mechanical impingement risk during scapular plane abduction.
    Study design: Descriptive laboratory study.
    Methods: Three-dimensional bone models were reconstructed from computed tomography scans obtained from 10 asymptomatic subjects and 9 symptomatic subjects with a clinical presentation of impingement syndrome. Models were rotated to average scapular orientations from a healthy dataset at higher (120°) and lower (subject-specific) humeral elevation angles to investigate internal and subacromial impingement risks, respectively. Incremental deviations in scapular upward/downward rotation, internal/external rotation, and anterior/posterior tilt were imposed on the models to simulate scapular movement impairments. The minimum distance between the rotator cuff insertions and potential impinging structures (eg, glenoid, acromion) was calculated. Two-way mixed-model analyses of variance assessed for effects of scapular deviation and group.
    Results: At 120° of humerothoracic elevation, minimum distances from the supraspinatus and infraspinatus insertions to the glenoid increased with ≥5° changes in upward rotation (1.6-9.8 mm,
    Conclusion: A reduction in scapular upward rotation decreases the distance between the rotator cuff tendon insertions and glenoid at 120° humerothoracic elevation. Interpretation is complicated for lower angles because the humeral elevation angle was defined by the minimum distance.
    Clinical relevance: These results may assist clinical decision making regarding the effects of scapular movement deviations in patients with rotator cuff pathology and scapular dyskinesia and may help inform the selection of clinical interventions.
    Language English
    Publishing date 2024-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2706251-X
    ISSN 2325-9671
    ISSN 2325-9671
    DOI 10.1177/23259671231219023
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Two new genera and two new species of eriophyoid mites (Acari: Eriophyoidea) from North Bengal, India.

    Chakrabarti, Samiran / Sur, Surajit / Roy, Sourav / Sarkar, Sanjay

    Zootaxa

    2017  Volume 4236, Issue 1, Page(s) zootaxa.4236.1.10

    Abstract: Two new genera and two new species of eriophyoid mites viz., Propeaciota genusetosis n. gen. and n. sp. infesting Acer sp. (Aceraceae) and Spinaephyes alnus n. gen. and n. sp. infesting Alnus nepalensis D. Don (Betulaceae) are described in the tribe ... ...

    Abstract Two new genera and two new species of eriophyoid mites viz., Propeaciota genusetosis n. gen. and n. sp. infesting Acer sp. (Aceraceae) and Spinaephyes alnus n. gen. and n. sp. infesting Alnus nepalensis D. Don (Betulaceae) are described in the tribe Tegonotini (Eriophyidae: Phyllocoptinae) from North Bengal, India. Aciota secundum Flechtmann et al.1995 is re-assigned (n. comb.) to Propeaciota. Relationships of the new genera with other eriophyoid genera are discussed.
    MeSH term(s) Animals ; India ; Mites
    Language English
    Publishing date 2017-02-21
    Publishing country New Zealand
    Document type Journal Article
    ISSN 1175-5334
    ISSN (online) 1175-5334
    DOI 10.11646/zootaxa.4236.1.10
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Host Genetic Variation Impacts SARS-CoV-2 Vaccination Response in the Diversity Outbred Mouse Population.

    Cruz Cisneros, Marta C / Anderson, Elizabeth J / Hampton, Brea K / Parotti, Breantié / Sarkar, Sanjay / Taft-Benz, Sharon / Bell, Timothy A / Blanchard, Matthew / Dillard, Jacob A / Dinnon, Kenneth H / Hock, Pablo / Leist, Sarah R / Madden, Emily A / Shaw, Ginger D / West, Ande / Baric, Ralph S / Baxter, Victoria K / Pardo-Manuel de Villena, Fernando / Heise, Mark T /
    Ferris, Martin T

    Vaccines

    2024  Volume 12, Issue 1

    Abstract: The COVID-19 pandemic led to the rapid and worldwide development of highly effective vaccines against SARS-CoV-2. However, there is significant individual-to-individual variation in vaccine efficacy due to factors including viral variants, host age, ... ...

    Abstract The COVID-19 pandemic led to the rapid and worldwide development of highly effective vaccines against SARS-CoV-2. However, there is significant individual-to-individual variation in vaccine efficacy due to factors including viral variants, host age, immune status, environmental and host genetic factors. Understanding those determinants driving this variation may inform the development of more broadly protective vaccine strategies. While host genetic factors are known to impact vaccine efficacy for respiratory pathogens such as influenza and tuberculosis, the impact of host genetic variation on vaccine efficacy against COVID-19 is not well understood. To model the impact of host genetic variation on SARS-CoV-2 vaccine efficacy, while controlling for the impact of non-genetic factors, we used the Diversity Outbred (DO) mouse model. We found that DO mice immunized against SARS-CoV-2 exhibited high levels of variation in vaccine-induced neutralizing antibody responses. While the majority of the vaccinated mice were protected from virus-induced disease, similar to human populations, we observed vaccine breakthrough in a subset of mice. Importantly, we found that this variation in neutralizing antibody, virus-induced disease, and viral titer is heritable, indicating that the DO serves as a useful model system for studying the contribution of genetic variation of both vaccines and disease outcomes.
    Language English
    Publishing date 2024-01-20
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2703319-3
    ISSN 2076-393X
    ISSN 2076-393X
    DOI 10.3390/vaccines12010103
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Sorptive removal of malachite green from aqueous solution by magnetite/coir pith supported sodium alginate beads: Kinetics, isotherms, thermodynamics and parametric optimization

    Sarkar, Sanjay / Tiwari, Nitika / Basu, Aradhana / Behera, Meerambika / Das, Bhaskar / Chakrabortty, Sankha / Sanjay, Kali / Suar, Mrutyunjay / Adhya, Tapan Kumar / Banerjee, Shirsendu / Tripathy, Suraj K.

    Environmental technology & innovation. 2021 Nov., v. 24

    2021  

    Abstract: The present study deals with facile synthesis of magnetite/coir pith supported sodium alginate beads from naturally available waste materials which was further employed for removal of malachite green dye from synthetic aqueous solution underaparametric ... ...

    Abstract The present study deals with facile synthesis of magnetite/coir pith supported sodium alginate beads from naturally available waste materials which was further employed for removal of malachite green dye from synthetic aqueous solution underaparametric optimized condition of the adsorption process. Several operating parameters such as stirring speed (50–250 rpm), adsorbent weight (0.5–7 g/L), pH (2–9), temperature (35–55 °C), and initial malachite green dye concentration (50–250 mg/L) were used to study the adsorption in a batch operation. The central composite design approach of response surface methodology in design-expert software revealed maximum removal efficiency of malachite green at pH of 7; initial malachite green dye concentration of 150 mg/L; adsorbent weight of 3g and temperature of 35 °C which showed adsorption efficiency (>98%). Analysis of Variance (ANOVA) suggested the equation to be significant for the process with a greater impact of adsorbent weight and malachite green concentration rather than the other three contributing parameters. Extensive kinetic, isotherm, thermodynamic, and eco-toxicological studies were performed to understand the behavior and sustainability of the developed materials. Final observation assured the reusability of the processed beads and hence showed gigantic potential for implementation on industrial-scale evaluation for the treatment of wastewater.
    Keywords adsorbents ; adsorption ; analysis of variance ; aqueous solutions ; coir ; computer software ; environmental technology ; equations ; magnetite ; malachite green ; pH ; pith ; response surface methodology ; sodium alginate ; temperature ; thermodynamics ; wastewater treatment
    Language English
    Dates of publication 2021-11
    Publishing place Elsevier B.V.
    Document type Article
    ISSN 2352-1864
    DOI 10.1016/j.eti.2021.101818
    Database NAL-Catalogue (AGRICOLA)

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  7. Article ; Online: Multi-component redox system for selective and potent antineoplastic activity towards ovarian cancer cells.

    Roy, Debarshi / Jenkins, Brenita / Ali, Aqeeb / Herschmann, Jacob R / Harris, Michele / Zamadar, Matibur / Simington, Laken / Odunuga, Odutayo / Adhikari, Prakash / Pradhan, Prabhakar / Sarkar, Sanjay / Pattabiram, Mahesh / Sengupta, Bidisha

    Biochemical and biophysical research communications

    2022  Volume 592, Page(s) 38–43

    Abstract: Ovarian cancer is the deadliest gynecological cancer which rarely causes symptoms, and goes undetected until reaching the advanced stage of drug-resistant metastases. The cationic porphyrin meso-tetra(4-N-methylpyridyl)porphine (TMPyP) is a well-known ... ...

    Abstract Ovarian cancer is the deadliest gynecological cancer which rarely causes symptoms, and goes undetected until reaching the advanced stage of drug-resistant metastases. The cationic porphyrin meso-tetra(4-N-methylpyridyl)porphine (TMPyP) is a well-known photosensitizer (PS) used in photodyamic therapy (PDT) for curing cancer due to its strong affinity for DNA and high yield of reactive oxygen species (ROS) upon light activation. The practicality to irradiate tumor cells alone in the physiological system being slim (due to the close proximity of healthy cells and tumors), we looked for a variation in the PDT using a mixture of TMPyP with 1,5-dihydroxynapthalene (DHN) and Fe(III) ions at a mole ratio of 1:20:17 (drug combo) respectively in aqueous solution. The drug combo needs no photoactivation in H
    MeSH term(s) Acids/metabolism ; Animals ; Antineoplastic Agents/pharmacology ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Cell Survival/drug effects ; Female ; Fibroblasts/drug effects ; Fibroblasts/metabolism ; Humans ; Hydrogen Peroxide/metabolism ; Mice ; Naphthols/pharmacology ; Naphthoquinones/pharmacology ; Ovarian Neoplasms/metabolism ; Ovarian Neoplasms/pathology ; Oxidation-Reduction ; Porphyrins/pharmacology ; Spectrometry, Fluorescence
    Chemical Substances Acids ; Antineoplastic Agents ; Naphthols ; Naphthoquinones ; Porphyrins ; tetra(4-N-methylpyridyl)porphine (38673-65-3) ; Hydrogen Peroxide (BBX060AN9V) ; 1,5-dihydroxynaphthalene (P25HC23VH6) ; juglone (W6Q80SK9L6)
    Language English
    Publishing date 2022-01-06
    Publishing country United States
    Document type Journal Article ; Research Support, N.I.H., Extramural ; Research Support, Non-U.S. Gov't
    ZDB-ID 205723-2
    ISSN 1090-2104 ; 0006-291X ; 0006-291X
    ISSN (online) 1090-2104 ; 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.01.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article: Multi-component redox system for selective and potent antineoplastic activity towards ovarian cancer cells

    Roy, Debarshi / Jenkins, Brenita / Ali, Aqeeb / Herschmann, Jacob R. / Harris, Michele / Zamadar, Matibur / Simington, Laken / Odunuga, Odutayo / Adhikari, Prakash / Pradhan, Prabhakar / Sarkar, Sanjay / Pattabiram, Mahesh / Sengupta, Bidisha

    Biochemical and biophysical research communications. 2022 Feb. 12, v. 592

    2022  

    Abstract: Ovarian cancer is the deadliest gynecological cancer which rarely causes symptoms, and goes undetected until reaching the advanced stage of drug-resistant metastases. The cationic porphyrin meso-tetra(4-N-methylpyridyl)porphine (TMPyP) is a well-known ... ...

    Abstract Ovarian cancer is the deadliest gynecological cancer which rarely causes symptoms, and goes undetected until reaching the advanced stage of drug-resistant metastases. The cationic porphyrin meso-tetra(4-N-methylpyridyl)porphine (TMPyP) is a well-known photosensitizer (PS) used in photodyamic therapy (PDT) for curing cancer due to its strong affinity for DNA and high yield of reactive oxygen species (ROS) upon light activation. The practicality to irradiate tumor cells alone in the physiological system being slim (due to the close proximity of healthy cells and tumors), we looked for a variation in the PDT using a mixture of TMPyP with 1,5-dihydroxynapthalene (DHN) and Fe(III) ions at a mole ratio of 1:20:17 (drug combo) respectively in aqueous solution. The drug combo needs no photoactivation in H₂O₂ rich environment (mimicking the microenvironment of cancer/tumor), where it generates ȮH and juglone, the latter being a known potent anticancer agent. In vitro studies of the drug combo in drug resistant and sensitive ovarian cancer cell lines showed drastic growth inhibition and cell death compared to normal epithelial cells. The drug combo provides an effective and non-invasive alternative to conventional PDT, exploiting the cytosolic carcinogenic H₂O₂ to produce an efficient anticancer treatment. The unique action of cancer-specific cytotoxicity arises from the redox chemistry involving activation of Fe(III) as the oxidizing agent to generate juglone, which utilizes the cytosolic ROS in cancer cells against itself.
    Keywords DNA ; antineoplastic activity ; antineoplastic agents ; aqueous solutions ; carcinogenicity ; cell death ; cytotoxicity ; drug resistance ; epithelium ; growth retardation ; juglone ; neoplasm cells ; ovarian neoplasms ; photosensitizing agents ; porphyrins ; research ; therapeutics
    Language English
    Dates of publication 2022-0212
    Size p. 38-43.
    Publishing place Elsevier Inc.
    Document type Article
    ZDB-ID 205723-2
    ISSN 0006-291X ; 0006-291X
    ISSN (online) 0006-291X
    ISSN 0006-291X
    DOI 10.1016/j.bbrc.2022.01.007
    Database NAL-Catalogue (AGRICOLA)

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  9. Article ; Online: The neuropathogenic T953 strain of equine herpesvirus-1 inhibits type-I IFN mediated antiviral activity in equine endothelial cells.

    Sarkar, Sanjay / Balasuriya, Udeni B R / Horohov, David W / Chambers, Thomas M

    Veterinary microbiology

    2016  Volume 183, Page(s) 110–118

    Abstract: Equine herpesvirus-1 (EHV-1) infects equine endothelial cells (EECs) lining the small blood vessels in the central nervous system. However, the effect of type I IFN on EHV-1 replication in the EECs is not well studied. Thus, the primary objective of this ...

    Abstract Equine herpesvirus-1 (EHV-1) infects equine endothelial cells (EECs) lining the small blood vessels in the central nervous system. However, the effect of type I IFN on EHV-1 replication in the EECs is not well studied. Thus, the primary objective of this study was to investigate the effect of type-I IFN on the replication of the neuropathogenic T953 strain of EHV-1 in vitro in EECs. The initial data showed that the EHV-1 was partly resistant to the biological effect of exogenously supplied recombinant equine IFN-α. Subsequent investigation into the mechanism of resistance showed that EHV-1 infection of EECs interfered with the STAT-1 phosphorylation through which type-I IFN exerts its antiviral effect. Immunofluorescence staining showed interference with the translocation of STAT-1 molecules from cytoplasm to nucleus confirming the virus mediated suppression of STAT-1 activation. Downstream of the JAK-STAT signaling, EHV-1 infection inhibited expression of cellular antiviral proteins including IFN-stimulated gene 56 (ISG56) and viperin. Taken together these findings suggest that the neuropathogenic T953 strain of EHV-1 evades the host innate immune response by inhibiting IFN and this may provide some insight into the pathogenesis of EHV-1 infection.
    MeSH term(s) Animals ; Antiviral Agents/pharmacology ; Cells, Cultured ; Endothelial Cells/virology ; Gene Expression Regulation/drug effects ; Herpesviridae Infections/immunology ; Herpesviridae Infections/physiopathology ; Herpesviridae Infections/virology ; Herpesvirus 1, Equid/drug effects ; Herpesvirus 1, Equid/immunology ; Horse Diseases/immunology ; Horse Diseases/physiopathology ; Horse Diseases/virology ; Horses ; Interferon Type I/pharmacology ; Phosphorylation/drug effects ; STAT1 Transcription Factor/metabolism ; Signal Transduction/drug effects ; Virus Replication/drug effects
    Chemical Substances Antiviral Agents ; Interferon Type I ; STAT1 Transcription Factor
    Language English
    Publishing date 2016-02-01
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 753154-0
    ISSN 1873-2542 ; 0378-1135
    ISSN (online) 1873-2542
    ISSN 0378-1135
    DOI 10.1016/j.vetmic.2015.12.011
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article ; Online: Conserved arginine residues in the carboxyl terminus of the equine arteritis virus E protein may play a role in heparin binding but may not affect viral infectivity in equine endothelial cells.

    Lu, Zhengchun / Sarkar, Sanjay / Zhang, Jianqiang / Balasuriya, Udeni B R

    Archives of virology

    2016  Volume 161, Issue 4, Page(s) 873–886

    Abstract: Equine arteritis virus (EAV), the causative agent of equine viral arteritis, has relatively broad cell tropism in vitro. In horses, EAV primarily replicates in macrophages and endothelial cells of small blood vessels. Until now, neither the cellular ... ...

    Abstract Equine arteritis virus (EAV), the causative agent of equine viral arteritis, has relatively broad cell tropism in vitro. In horses, EAV primarily replicates in macrophages and endothelial cells of small blood vessels. Until now, neither the cellular receptor(s) nor the mechanism(s) of virus attachment and entry have been determined for this virus. In this study, we investigated the effect of heparin on EAV infection in equine endothelial cells (EECs). Heparin, but not other glycosaminoglycans, could reduce EAV infection up to 93 %. Sequence analysis of the EAV E minor envelope protein revealed a conserved amino acid sequence (52 RSLVARCSRGARYR 65) at the carboxy terminus of the E protein, which was predicted to be the heparin-binding domain. The basic arginine (R) amino acid residues were subsequently mutated to glycine by site-directed mutagenesis of ORF2a in an E protein expression vector and an infectious cDNA clone of EAV. Two single mutations in E (R52G and R57G) did not affect the heparin-binding capability, whereas the E double mutation (R52,60G) completely eliminated the interaction between the E protein and heparin. Although the mutant R52,60G EAV did not bind heparin, the mutations did not completely abolish infectivity, indicating that heparin is not the only critical factor for EAV infection. This also suggested that other viral envelope protein(s) might be involved in attachment through heparin or other cell-surface molecules, and this warrants further investigation.
    MeSH term(s) Amino Acid Sequence ; Animals ; Antibodies, Monoclonal ; Antibodies, Viral ; Arginine/chemistry ; Cloning, Molecular ; Endothelial Cells/virology ; Glycosaminoglycans ; Heparin/metabolism ; Heparin Lyase ; Horses ; Mutagenesis, Site-Directed ; Mutation ; Protein Binding ; Recombinant Proteins ; Viral Structural Proteins/chemistry ; Viral Structural Proteins/genetics ; Viral Structural Proteins/metabolism
    Chemical Substances Antibodies, Monoclonal ; Antibodies, Viral ; E protein, Equine arteritis virus ; Glycosaminoglycans ; Recombinant Proteins ; Viral Structural Proteins ; Heparin (9005-49-6) ; Arginine (94ZLA3W45F) ; Heparin Lyase (EC 4.2.2.7)
    Language English
    Publishing date 2016-04
    Publishing country Austria
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 7491-3
    ISSN 1432-8798 ; 0304-8608
    ISSN (online) 1432-8798
    ISSN 0304-8608
    DOI 10.1007/s00705-015-2733-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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