Ryota Koyama

41 papers and 668 indexed citations i.

About

Ryota Koyama is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryota Koyama has authored 41 papers receiving a total of 668 indexed citations (citations by other indexed papers that have themselves been cited), including 19 papers in Oncology, 17 papers in Surgery and 13 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryota Koyama’s work include Cancer-related Molecular Pathways (8 papers), Gastric Cancer Management and Outcomes (4 papers) and Lymphoma Diagnosis and Treatment (3 papers). Ryota Koyama is often cited by papers focused on Cancer-related Molecular Pathways (8 papers), Gastric Cancer Management and Outcomes (4 papers) and Lymphoma Diagnosis and Treatment (3 papers). Ryota Koyama collaborates with scholars based in Japan, United States and Brazil. Ryota Koyama's co-authors include Takashi Tokino, Yasushi Sasaki, Masashi Idogawa, Tomohisa Takagi, Satoshi Kokura, Yoshikazu Takanami, Hiroshi Ichikawa, Toshikazu Yoshikawa, Katsura Mizushima and Yuji Naito and has published in prestigious journals such as Journal of Biological Chemistry, Cancer Research and Oncogene.

In The Last Decade

Co-authorship network of co-authors of Ryota Koyama i

Fields of papers citing papers by Ryota Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ryota Koyama

Since Specialization
Citations

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