Koichiro Kumai

150 papers and 3.1k indexed citations i.

About

Koichiro Kumai is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Oncology. According to data from OpenAlex, Koichiro Kumai has authored 150 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 75 papers in Pulmonary and Respiratory Medicine, 53 papers in Surgery and 50 papers in Oncology. Recurrent topics in Koichiro Kumai’s work include Gastric Cancer Management and Outcomes (66 papers), Gastrointestinal Tumor Research and Treatment (31 papers) and Metastasis and carcinoma case studies (29 papers). Koichiro Kumai is often cited by papers focused on Gastric Cancer Management and Outcomes (66 papers), Gastrointestinal Tumor Research and Treatment (31 papers) and Metastasis and carcinoma case studies (29 papers). Koichiro Kumai collaborates with scholars based in Japan, United States and Russia. Koichiro Kumai's co-authors include Tetsuro Kubota, Masaki Kitajima, Yoshihide Otani, Yoshiro Saikawa, Masahiro Ohgami, Toshiharu Furukawa, Yuko Kitagawa, Makio Mukai, Kaori Kameyama and Masashi Yoshida and has published in prestigious journals such as Gastroenterology, Annals of the New York Academy of Sciences and International Journal of Radiation Oncology*Biology*Physics.

In The Last Decade

Co-authorship network of co-authors of Koichiro Kumai i

Fields of papers citing papers by Koichiro Kumai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koichiro Kumai

Since Specialization
Citations

This map shows the geographic impact of Koichiro Kumai'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 Koichiro Kumai with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichiro Kumai 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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2025