Yoshihiro Okayama

22 papers and 512 indexed citations i.

About

Yoshihiro Okayama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Yoshihiro Okayama has authored 22 papers receiving a total of 512 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Surgery, 6 papers in Pulmonary and Respiratory Medicine and 6 papers in Oncology. Recurrent topics in Yoshihiro Okayama’s work include Colorectal Cancer Treatments and Studies (4 papers), Heart Failure Treatment and Management (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Yoshihiro Okayama is often cited by papers focused on Colorectal Cancer Treatments and Studies (4 papers), Heart Failure Treatment and Management (4 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (3 papers). Yoshihiro Okayama collaborates with scholars based in Japan and United States. Yoshihiro Okayama's co-authors include Toshinori Oka, Yoshikazu Sugimoto, Yoshizo Matsuka, Takashi Kobunai, Etsuko Toda, Otto Baba, Masamitsu Oshima, Maki Hosoki, Miho Inoue and Rieko Arakaki and has published in prestigious journals such as Journal of Clinical Oncology, Cancer Research and Clinical Cancer Research.

In The Last Decade

Co-authorship network of co-authors of Yoshihiro Okayama

This figure shows the co-authorship network connecting the top 25 collaborators of Yoshihiro Okayama. A scholar is included among the top collaborators of Yoshihiro Okayama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Yoshihiro Okayama. Yoshihiro Okayama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Yoshihiro Okayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Yoshihiro Okayama

Since Specialization
Citations

This map shows the geographic impact of Yoshihiro Okayama'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 Yoshihiro Okayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yoshihiro Okayama 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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2026