Ken Haruma

25 papers and 577 indexed citations
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About

Ken Haruma is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ken Haruma has authored 25 papers receiving a total of 577 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Surgery, 12 papers in Gastroenterology and 11 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ken Haruma’s work include Helicobacter pylori-related gastroenterology studies (10 papers), Gastric Cancer Management and Outcomes (8 papers) and Gastroesophageal reflux and treatments (6 papers). Ken Haruma is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (10 papers), Gastric Cancer Management and Outcomes (8 papers) and Gastroesophageal reflux and treatments (6 papers). Ken Haruma collaborates with scholars based in Japan and Australia. Ken Haruma's co-authors include Goro Kajiyama, Koji Sumii, Tomoari Kamada, Fumio Shimamoto, Shinji Tanaka, Goro Kajiyama, Kunihiko Komoto, Shinji Tanaka, Carlos Roberto Teixeira and Masaharu Yoshihara and has published in prestigious journals such as Cancer, Biochemical and Biophysical Research Communications and The American Journal of Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Ken Haruma

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

Fields of papers citing papers by Ken Haruma

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ken Haruma

Since Specialization
Citations

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