Yoji Hirayama

30 papers and 1.0k indexed citations i.

About

Yoji Hirayama is a scholar working on Surgery, Cardiology and Cardiovascular Medicine and Epidemiology. According to data from OpenAlex, Yoji Hirayama has authored 30 papers receiving a total of 1.0k indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Surgery, 9 papers in Cardiology and Cardiovascular Medicine and 6 papers in Epidemiology. Recurrent topics in Yoji Hirayama’s work include Cardiovascular Health and Disease Prevention (6 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Eosinophilic Esophagitis (3 papers). Yoji Hirayama is often cited by papers focused on Cardiovascular Health and Disease Prevention (6 papers), Helicobacter pylori-related gastroenterology studies (4 papers) and Eosinophilic Esophagitis (3 papers). Yoji Hirayama collaborates with scholars based in Japan and United Kingdom. Yoji Hirayama's co-authors include Akira Yamashina, Hirofumi Tomiyama, Yutaka Koji, Yoshio Yamamoto, Tomio Arai, Kenichi Hirose, Minoru Yambe, Yoshifumi Takata, Kazuo Inoue and Kazuki Shiina and has published in prestigious journals such as Hypertension, Atherosclerosis and Gastrointestinal Endoscopy.

In The Last Decade

Co-authorship network of co-authors of Yoji Hirayama i

Fields of papers citing papers by Yoji Hirayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Yoji Hirayama

Since Specialization
Citations

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

Explore authors with similar magnitude of impact

Rankless by CCL
2025