Shigehiko Koga

35 papers and 621 indexed citations i.

About

Shigehiko Koga is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Molecular Biology. According to data from OpenAlex, Shigehiko Koga has authored 35 papers receiving a total of 621 indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Surgery, 13 papers in Pulmonary and Respiratory Medicine and 7 papers in Molecular Biology. Recurrent topics in Shigehiko Koga’s work include Urinary and Genital Oncology Studies (6 papers), Renal cell carcinoma treatment (6 papers) and Urological Disorders and Treatments (5 papers). Shigehiko Koga is often cited by papers focused on Urinary and Genital Oncology Studies (6 papers), Renal cell carcinoma treatment (6 papers) and Urological Disorders and Treatments (5 papers). Shigehiko Koga collaborates with scholars based in Japan and United States. Shigehiko Koga's co-authors include Hiroshi Kanetake, Yasuyoshi Miyata, Shigeru Kanda, Masaharu Nishikido, Tomayoshi Hayashi, Fukuzo Matsuya, Yutaka Saito, Kojiro Ohba, Mitsuru Noguchi and Koichiro Nomata and has published in prestigious journals such as Biochemical and Biophysical Research Communications, The Journal of Urology and European Urology.

In The Last Decade

Co-authorship network of co-authors of Shigehiko Koga i

Fields of papers citing papers by Shigehiko Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Shigehiko Koga

Since Specialization
Citations

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