Shiro Oka

252 papers and 5.7k indexed citations i.

About

Shiro Oka is a scholar working on Pulmonary and Respiratory Medicine, Surgery and Gastroenterology. According to data from OpenAlex, Shiro Oka has authored 252 papers receiving a total of 5.7k indexed citations (citations by other indexed papers that have themselves been cited), including 135 papers in Pulmonary and Respiratory Medicine, 125 papers in Surgery and 91 papers in Gastroenterology. Recurrent topics in Shiro Oka’s work include Gastric Cancer Management and Outcomes (113 papers), Gastrointestinal Tumor Research and Treatment (52 papers) and Gastrointestinal Bleeding Diagnosis and Treatment (47 papers). Shiro Oka is often cited by papers focused on Gastric Cancer Management and Outcomes (113 papers), Gastrointestinal Tumor Research and Treatment (52 papers) and Gastrointestinal Bleeding Diagnosis and Treatment (47 papers). Shiro Oka collaborates with scholars based in Japan, Vietnam and United States. Shiro Oka's co-authors include Shinji Tanaka, Kazuaki Chayama, Masaharu Yoshihara, Shigeto Yoshida, Mayuko Hirata, Iwao Kaneko, Ritsuo Mouri, Yoji Sanomura, Hiroyuki Kanao and Koji Arihiro and has published in prestigious journals such as Gastroenterology, PLoS ONE and Hepatology.

In The Last Decade

Co-authorship network of co-authors of Shiro Oka i

Fields of papers citing papers by Shiro Oka

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Shiro Oka

Since Specialization
Citations

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