Koji Otani

125 papers and 1.5k indexed citations i.

About

Koji Otani is a scholar working on Surgery, Gastroenterology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Koji Otani has authored 125 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 74 papers in Surgery, 31 papers in Gastroenterology and 30 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Koji Otani’s work include Helicobacter pylori-related gastroenterology studies (26 papers), Eosinophilic Esophagitis (23 papers) and Inflammatory Bowel Disease (19 papers). Koji Otani is often cited by papers focused on Helicobacter pylori-related gastroenterology studies (26 papers), Eosinophilic Esophagitis (23 papers) and Inflammatory Bowel Disease (19 papers). Koji Otani collaborates with scholars based in Japan, United States and Hong Kong. Koji Otani's co-authors include Toshio Watanabe, Yasuhiro Fujiwara, Tetsuya Tanigawa, Hirokazu Yamagami, Yuji Nadatani, Fumio Tanaka, Yasuaki Nagami, Noriko Kamata, Shuhei Hosomi and Koichi Taira and has published in prestigious journals such as Gastroenterology, PLoS ONE and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Koji Otani i

Fields of papers citing papers by Koji Otani

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Koji Otani

Since Specialization
Citations

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