Hajime Otsu

31 papers and 469 indexed citations i.

About

Hajime Otsu is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Hajime Otsu has authored 31 papers receiving a total of 469 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Surgery, 12 papers in Pulmonary and Respiratory Medicine and 12 papers in Oncology. Recurrent topics in Hajime Otsu’s work include Gastric Cancer Management and Outcomes (6 papers), Esophageal and GI Pathology (6 papers) and Esophageal Cancer Research and Treatment (6 papers). Hajime Otsu is often cited by papers focused on Gastric Cancer Management and Outcomes (6 papers), Esophageal and GI Pathology (6 papers) and Esophageal Cancer Research and Treatment (6 papers). Hajime Otsu collaborates with scholars based in Japan and United States. Hajime Otsu's co-authors include Eiji Oki, Yoshihiko Maehara, Koji Ando, Masaru Morita, Hiroyuki Kawano, Yasushi Iwasaki, Hiroshi Saeki, Hiroshi Saeki, Hiroyuki Kitao and Yasuo Tsuda and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Clinical Oncology and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Hajime Otsu i

Fields of papers citing papers by Hajime Otsu

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hajime Otsu

Since Specialization
Citations

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