Hiroki Sonoyama

35 papers and 352 indexed citations i.

About

Hiroki Sonoyama is a scholar working on Surgery, Epidemiology and Genetics. According to data from OpenAlex, Hiroki Sonoyama has authored 35 papers receiving a total of 352 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Surgery, 14 papers in Epidemiology and 10 papers in Genetics. Recurrent topics in Hiroki Sonoyama’s work include Inflammatory Bowel Disease (10 papers), Microscopic Colitis (8 papers) and Helicobacter pylori-related gastroenterology studies (5 papers). Hiroki Sonoyama is often cited by papers focused on Inflammatory Bowel Disease (10 papers), Microscopic Colitis (8 papers) and Helicobacter pylori-related gastroenterology studies (5 papers). Hiroki Sonoyama collaborates with scholars based in Japan and United States. Hiroki Sonoyama's co-authors include Shunji Ishihara, Kousaku Kawashima, Naoki Oshima, Ichiro Moriyama, Yoshikazu Kinoshita, Nobuhiko Fukuba, Akihiko Oka, Takafumi Yuki, Yasumasa Tada and Yoshiyuki Mishima and has published in prestigious journals such as Journal of Clinical Oncology, Gastroenterology and PLoS ONE.

In The Last Decade

Co-authorship network of co-authors of Hiroki Sonoyama i

Fields of papers citing papers by Hiroki Sonoyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Hiroki Sonoyama

Since Specialization
Citations

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