Minoru Umehara

About

Minoru Umehara is a scholar working on Surgery, Hepatology and Oncology. According to data from OpenAlex, Minoru Umehara has authored 56 papers receiving a total of 437 indexed citations (citations by other indexed papers that have themselves been cited), including 46 papers in Surgery, 26 papers in Hepatology and 13 papers in Oncology. Recurrent topics in Minoru Umehara’s work include Organ Transplantation Techniques and Outcomes (27 papers), Liver Disease and Transplantation (22 papers) and Colorectal Cancer Surgical Treatments (7 papers). Minoru Umehara is often cited by papers focused on Organ Transplantation Techniques and Outcomes (27 papers), Liver Disease and Transplantation (22 papers) and Colorectal Cancer Surgical Treatments (7 papers). Minoru Umehara collaborates with scholars based in Japan, United States and Germany. Minoru Umehara's co-authors include Kenichi Hakamada, Yoshikazu Toyoki, Mutsuo Sasaki, Yukihiro Sanada, Daisuke Kudo, Shuji Hishikawa, Hideo Kawarasaki, Yoshikazu Yasuda, Koichi Mizuta and Taiichi Wakiya and has published in prestigious journals such as American Journal of Transplantation, Journal of Gastroenterology and Hepatology and SpringerPlus.

In The Last Decade

Co-authorship network of co-authors of Minoru Umehara

This figure shows the co-authorship network connecting the top 25 collaborators of Minoru Umehara. A scholar is included among the top collaborators of Minoru Umehara based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Minoru Umehara. Minoru Umehara is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Minoru Umehara

51 papers receiving 392 citations

Fields of papers citing papers by Minoru Umehara

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Minoru Umehara

Since Specialization

Citations

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