Kazuki Sumiyama

163 papers and 2.5k indexed citations i.

About

Kazuki Sumiyama is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Gastroenterology. According to data from OpenAlex, Kazuki Sumiyama has authored 163 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 117 papers in Surgery, 102 papers in Pulmonary and Respiratory Medicine and 57 papers in Gastroenterology. Recurrent topics in Kazuki Sumiyama’s work include Gastric Cancer Management and Outcomes (72 papers), Gastrointestinal Tumor Research and Treatment (37 papers) and Esophageal and GI Pathology (32 papers). Kazuki Sumiyama is often cited by papers focused on Gastric Cancer Management and Outcomes (72 papers), Gastrointestinal Tumor Research and Treatment (37 papers) and Esophageal and GI Pathology (32 papers). Kazuki Sumiyama collaborates with scholars based in Japan, United States and Singapore. Kazuki Sumiyama's co-authors include Hisao Tajiri, Christopher J. Gostout, Elizabeth Rajan, Mary A. Knipschield, Timothy A. Bakken, Kenichi Goda, Keiichi Ikeda, Hiroshi Kakutani, Naoto Tamai and Tomohiko R. Ohya and has published in prestigious journals such as Gastroenterology, PLoS ONE and Scientific Reports.

In The Last Decade

Co-authorship network of co-authors of Kazuki Sumiyama i

Fields of papers citing papers by Kazuki Sumiyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Kazuki Sumiyama

Since Specialization
Citations

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