J.‐J. Lefrère

50 total papers · 784 total citations
23 papers, 410 citations indexed

About

J.‐J. Lefrère is a scholar working on Epidemiology, Infectious Diseases and Hepatology. According to data from OpenAlex, J.‐J. Lefrère has authored 23 papers receiving a total of 410 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Epidemiology, 8 papers in Infectious Diseases and 8 papers in Hepatology. Recurrent topics in J.‐J. Lefrère’s work include Hepatitis B Virus Studies (8 papers), Blood donation and transfusion practices (7 papers) and Hepatitis C virus research (7 papers). J.‐J. Lefrère is often cited by papers focused on Hepatitis B Virus Studies (8 papers), Blood donation and transfusion practices (7 papers) and Hepatitis C virus research (7 papers). J.‐J. Lefrère collaborates with scholars based in France, United States and Switzerland. J.‐J. Lefrère's co-authors include Edward L. Murphy, Robert Girot, Syria Laperche, Bourèma Kouriba, J P Soulier, A. Diarra, Yacouba Nébié, Claude Tayou Tagny, Caroline H. Shiboski and M.H. Elghouzzi and has published in prestigious journals such as The Lancet, PLoS ONE and PEDIATRICS.

Co-authorship network of co-authors of J.‐J. Lefrère

This figure shows the co-authorship network connecting the top 25 collaborators of J.‐J. Lefrère. A scholar is included among the top collaborators of J.‐J. Lefrère based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with J.‐J. Lefrère. J.‐J. Lefrère is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

J.‐J. Lefrère

23 papers receiving 397 citations

Fields of papers citing papers by J.‐J. Lefrère

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by J.‐J. Lefrère. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by J.‐J. Lefrère. The network helps show where J.‐J. Lefrère may publish in the future.

Countries citing papers authored by J.‐J. Lefrère

Since Specialization
Citations

This map shows the geographic impact of J.‐J. Lefrère's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by J.‐J. Lefrère with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites J.‐J. Lefrère more than expected).

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar’s output or impact.

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2026