Ryuma Tokunaga

100 papers and 3.5k indexed citations i.

About

Ryuma Tokunaga is a scholar working on Oncology, Surgery and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Ryuma Tokunaga has authored 100 papers receiving a total of 3.5k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Oncology, 35 papers in Surgery and 33 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Ryuma Tokunaga’s work include Esophageal Cancer Research and Treatment (17 papers), Colorectal Cancer Treatments and Studies (17 papers) and Genetic factors in colorectal cancer (14 papers). Ryuma Tokunaga is often cited by papers focused on Esophageal Cancer Research and Treatment (17 papers), Colorectal Cancer Treatments and Studies (17 papers) and Genetic factors in colorectal cancer (14 papers). Ryuma Tokunaga collaborates with scholars based in Japan, United States and Italy. Ryuma Tokunaga's co-authors include Hideo Baba, Naoya Yoshida, Madiha Naseem, Heinz‐Josef Lenz, Alberto Puccini, Martin D. Berger, Wu Zhang, Shivani Soni, Yuji Miyamoto and Yasuo Sakamoto and has published in prestigious journals such as Journal of Clinical Oncology, PLoS ONE and Cancer Research.

In The Last Decade

Co-authorship network of co-authors of Ryuma Tokunaga i

Fields of papers citing papers by Ryuma Tokunaga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ryuma Tokunaga

Since Specialization
Citations

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