Yasutaka Okayama

23 papers and 438 indexed citations i.

About

Yasutaka Okayama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Yasutaka Okayama has authored 23 papers receiving a total of 438 indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Surgery, 11 papers in Pulmonary and Respiratory Medicine and 10 papers in Oncology. Recurrent topics in Yasutaka Okayama’s work include Pancreatic and Hepatic Oncology Research (7 papers), Gastrointestinal disorders and treatments (6 papers) and Gallbladder and Bile Duct Disorders (6 papers). Yasutaka Okayama is often cited by papers focused on Pancreatic and Hepatic Oncology Research (7 papers), Gastrointestinal disorders and treatments (6 papers) and Gallbladder and Bile Duct Disorders (6 papers). Yasutaka Okayama collaborates with scholars based in Japan and United States. Yasutaka Okayama's co-authors include Takashi Joh, Kazuo Gotoh, Hirotaka Ohara, Kazuki Hayashi, Yasuhiro Kitajima, Masaaki Hirai, Hitoshi Sano, Makoto Miyaji, Hitomi Ohara and Toshihisa Takeuchi and has published in prestigious journals such as Gastroenterology, Gastrointestinal Endoscopy and Journal of Gastroenterology and Hepatology.

In The Last Decade

Co-authorship network of co-authors of Yasutaka Okayama i

Fields of papers citing papers by Yasutaka Okayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Yasutaka Okayama

Since Specialization
Citations

This map shows the geographic impact of Yasutaka 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 Yasutaka Okayama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Yasutaka 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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2025