Ken Nishikura

54 papers and 983 indexed citations i.

About

Ken Nishikura is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Oncology. According to data from OpenAlex, Ken Nishikura has authored 54 papers receiving a total of 983 indexed citations (citations by other indexed papers that have themselves been cited), including 35 papers in Surgery, 21 papers in Pulmonary and Respiratory Medicine and 17 papers in Oncology. Recurrent topics in Ken Nishikura’s work include Gastric Cancer Management and Outcomes (16 papers), Genetic factors in colorectal cancer (14 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (11 papers). Ken Nishikura is often cited by papers focused on Gastric Cancer Management and Outcomes (16 papers), Genetic factors in colorectal cancer (14 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (11 papers). Ken Nishikura collaborates with scholars based in Japan, Australia and Hungary. Ken Nishikura's co-authors include Yoichi Ajioka, Hidenobu Watanabe, Toshihiko Saito, Hiroyuki Matsubayashi, Masaaki Kobayashi, Yutaka Aoyagi, Hajime Watanabe, Hiroshi Kijima, Takao Itoi and Katsuyoshi Hatakeyama and has published in prestigious journals such as Cancer, Gut and Annals of Oncology.

In The Last Decade

Co-authorship network of co-authors of Ken Nishikura i

Fields of papers citing papers by Ken Nishikura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Ken Nishikura

Since Specialization
Citations

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