Roger W. Chapman

186 papers and 9.8k indexed citations i.

About

Roger W. Chapman is a scholar working on Hepatology, Epidemiology and Surgery. According to data from OpenAlex, Roger W. Chapman has authored 186 papers receiving a total of 9.8k indexed citations (citations by other indexed papers that have themselves been cited), including 143 papers in Hepatology, 94 papers in Epidemiology and 65 papers in Surgery. Recurrent topics in Roger W. Chapman’s work include Liver Diseases and Immunity (136 papers), Liver Disease Diagnosis and Treatment (81 papers) and Gallbladder and Bile Duct Disorders (48 papers). Roger W. Chapman is often cited by papers focused on Liver Diseases and Immunity (136 papers), Liver Disease Diagnosis and Treatment (81 papers) and Gallbladder and Bile Duct Disorders (48 papers). Roger W. Chapman collaborates with scholars based in United Kingdom, United States and Sweden. Roger W. Chapman's co-authors include K A Fleming, Kirsten Muri Boberg, Sheila Sherlock, Paul Klenerman, Gregory J. Gores, Johan Fevery, Benjamin L. Shneider, David M. Nagorney, Anthony N. Kalloo and Rodney Phillips and has published in prestigious journals such as The Lancet, The Journal of Experimental Medicine and Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Roger W. Chapman

This figure shows the co-authorship network connecting the top 25 collaborators of Roger W. Chapman. A scholar is included among the top collaborators of Roger W. Chapman 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 Roger W. Chapman. Roger W. Chapman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Roger W. Chapman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Roger W. Chapman. 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 Roger W. Chapman. The network helps show where Roger W. Chapman may publish in the future.

Countries citing papers authored by Roger W. Chapman

Since Specialization
Citations

This map shows the geographic impact of Roger W. Chapman'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 Roger W. Chapman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Roger W. Chapman 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