K Sumii

11 papers and 643 indexed citations
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About

K Sumii is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Cardiology and Cardiovascular Medicine. According to data from OpenAlex, K Sumii has authored 11 papers receiving a total of 643 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Surgery, 5 papers in Pulmonary and Respiratory Medicine and 2 papers in Cardiology and Cardiovascular Medicine. Recurrent topics in K Sumii’s work include Gastric Cancer Management and Outcomes (5 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Eosinophilic Esophagitis (2 papers). K Sumii is often cited by papers focused on Gastric Cancer Management and Outcomes (5 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Eosinophilic Esophagitis (2 papers). K Sumii collaborates with scholars based in Japan, Germany and United States. K Sumii's co-authors include Ken Haruma, Goro Kajiyama, Hiroto Mashiba, Nobuhito Sasaki, Shigefumi OKAMOTO, Shigeki Yamaguchi, Kiyomi Taniyama, Naomi Uemura, Yasuhiko Kitadai and Goro Kajiyama and has published in prestigious journals such as Alimentary Pharmacology & Therapeutics, Journal of Molecular and Cellular Cardiology and Diseases of the Colon & Rectum.

In The Last Decade

Co-authorship network of co-authors of K Sumii

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

Fields of papers citing papers by K Sumii

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by K Sumii

Since Specialization
Citations

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