Roger Der

7 papers and 447 indexed citations i.

About

Roger Der is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Roger Der has authored 7 papers receiving a total of 447 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 4 papers in Gastroenterology and 2 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Roger Der’s work include Esophageal Cancer Research and Treatment (5 papers), Gastroesophageal reflux and treatments (4 papers) and Helicobacter pylori-related gastroenterology studies (3 papers). Roger Der is often cited by papers focused on Esophageal Cancer Research and Treatment (5 papers), Gastroesophageal reflux and treatments (4 papers) and Helicobacter pylori-related gastroenterology studies (3 papers). Roger Der collaborates with scholars based in United States. Roger Der's co-authors include Parakrama Chandrasoma, Yanling Ma, Tom R. DeMeester, Jeffrey H. Peters, Susan Groshen, Reginald V. Lord, Denice Tsao‐Wei, Xiangdong Bu, Leslie Bernstein and Lingling Shi and has published in prestigious journals such as The American Journal of Surgical Pathology, Surgical Endoscopy and Digestive Diseases and Sciences.

In The Last Decade

Co-authorship network of co-authors of Roger Der i

Fields of papers citing papers by Roger Der

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Roger Der

Since Specialization
Citations

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