Nobutaka Umekita

50 papers and 316 indexed citations i.

About

Nobutaka Umekita is a scholar working on Surgery, Oncology and Pulmonary and Respiratory Medicine. According to data from OpenAlex, Nobutaka Umekita has authored 50 papers receiving a total of 316 indexed citations (citations by other indexed papers that have themselves been cited), including 27 papers in Surgery, 19 papers in Oncology and 15 papers in Pulmonary and Respiratory Medicine. Recurrent topics in Nobutaka Umekita’s work include Hepatocellular Carcinoma Treatment and Prognosis (10 papers), Gastric Cancer Management and Outcomes (9 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (6 papers). Nobutaka Umekita is often cited by papers focused on Hepatocellular Carcinoma Treatment and Prognosis (10 papers), Gastric Cancer Management and Outcomes (9 papers) and Cholangiocarcinoma and Gallbladder Cancer Studies (6 papers). Nobutaka Umekita collaborates with scholars based in Japan and United States. Nobutaka Umekita's co-authors include Satoru Inoue, Yasuji Seyama, Masatsugu Kitamura, Akio Saiura, Yuichi Matsui, Dai Shida, Masahiro Asakage, Kazumasa Noda, Soichi Tanaka and Taku Aoki and has published in prestigious journals such as Biochemical Pharmacology, Toxicology and Applied Pharmacology and World Journal of Gastroenterology.

In The Last Decade

Co-authorship network of co-authors of Nobutaka Umekita i

Fields of papers citing papers by Nobutaka Umekita

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Nobutaka Umekita

Since Specialization
Citations

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