Ryohei Hayashi

53 papers and 836 indexed citations i.

About

Ryohei Hayashi is a scholar working on Surgery, Epidemiology and Genetics. According to data from OpenAlex, Ryohei Hayashi has authored 53 papers receiving a total of 836 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Surgery, 18 papers in Epidemiology and 18 papers in Genetics. Recurrent topics in Ryohei Hayashi’s work include Inflammatory Bowel Disease (16 papers), Helicobacter pylori-related gastroenterology studies (8 papers) and Gastric Cancer Management and Outcomes (7 papers). Ryohei Hayashi is often cited by papers focused on Inflammatory Bowel Disease (16 papers), Helicobacter pylori-related gastroenterology studies (8 papers) and Gastric Cancer Management and Outcomes (7 papers). Ryohei Hayashi collaborates with scholars based in Japan, United States and Canada. Ryohei Hayashi's co-authors include Hajime Ohigashi, Ki Han Kwon, Akira Murakami, Shinji Tanaka, Kazuaki Chayama, Yoshitaka Ueno, Ratu Safitri, Hirohumi Niwa, Taijiro Matsushima and Kazutoshi Takahashi and has published in prestigious journals such as Gastroenterology, PLoS ONE and Biochemical and Biophysical Research Communications.

In The Last Decade

Co-authorship network of co-authors of Ryohei Hayashi i

Fields of papers citing papers by Ryohei Hayashi

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ryohei Hayashi

Since Specialization
Citations

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