Nobuhiro Koyanagi
- Hepatology top 0.5%
- Surgery top 5%
- Epidemiology top 5%
- Gastroenterology top 1%
- Pulmonary and Respiratory Medicine
- Co-authors
- Seigo KitanoKeizō SugimachiKiyoshi InokuchiKazushige BeppuHisanobu SakataShinichi NakayamaMichio KobayashiMakoto Hashizume
- Topics
- Liver Disease and Transplantation (32 papers)Liver Disease Diagnosis and Treatment (19 papers)Organ Transplantation Techniques and Outcomes (10 papers)
- Partner nations
- Japan
In The Last Decade
Nobuhiro Koyanagi
62 papers receiving 1.6k citations
Hit Papers
Peers
Comparison fields: 5 of 71
- Hepatology 1.2k
- Surgery 919
- Epidemiology 879
- Gastroenterology 367
- Pulmonary and Respiratory Medicine 188
Countries citing papers authored by Nobuhiro Koyanagi
This map shows the geographic impact of Nobuhiro Koyanagi'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 Nobuhiro Koyanagi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Nobuhiro Koyanagi more than expected).
Fields of papers citing papers by Nobuhiro Koyanagi
This network shows the impact of papers produced by Nobuhiro Koyanagi. 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 Nobuhiro Koyanagi. The network helps show where Nobuhiro Koyanagi may publish in the future.
Co-authorship network of co-authors of Nobuhiro Koyanagi
This figure shows the co-authorship network connecting the top 25 collaborators of Nobuhiro Koyanagi. A scholar is included among the top collaborators of Nobuhiro Koyanagi 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 Nobuhiro Koyanagi. Nobuhiro Koyanagi is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 7 | |
| 2 | 13 | |
| 3 | Natural history of hepatectomy regarding liver function: a study of both normal livers and livers with chronic hepatitis and cirrhosis. | 11 |
| 4 | 13 | |
| 5 | 2 | |
| 6 | 2 | |
| 7 | 21 | |
| 8 | 33 | |
| 9 | 8 | |
| 10 | 155 | |
| 11 | 4 | |
| 12 | 11 | |
| 13 | 6 | |
| 14 | 18 | |
| 15 | 3 | |
| 16 | 6 | |
| 17 | 96 | |
| 18 | 1 | |
| 19 | 35 | |
| 20 | 15 |
About Nobuhiro Koyanagi
Nobuhiro Koyanagi is a scholar working on Hepatology, Gastroenterology and Epidemiology, having authored 62 papers that have together received 1.6k indexed citations. Recurring topics across this work include Liver Disease and Transplantation (32 papers), Liver Disease Diagnosis and Treatment (19 papers) and Organ Transplantation Techniques and Outcomes (10 papers). The work is most often cited by research in Hepatology (1.2k citations), Gastroenterology (367 citations) and Epidemiology (879 citations). Nobuhiro Koyanagi has collaborated with scholars based in Japan. Frequent co-authors include Seigo Kitano, Keizō Sugimachi, Kiyoshi Inokuchi, Kazushige Beppu, Hisanobu Sakata, Shinichi Nakayama, Michio Kobayashi, Makoto Hashizume, H. Yamaga and Hidefumi Higashi. Their work appears in journals such as Hepatology, Annals of Surgery and British journal of surgery.
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.