Ryoji Kushima
- Pulmonary and Respiratory Medicine top 0.5%
- Surgery top 1%
- Oncology top 1%
- Molecular Biology top 5%
- Gastroenterology top 0.2%
- Co-authors
- Takanori HattoriShigeki SekineHitoshi TsudaAkihiko YoshidaHirokazu TaniguchiF BorchardHitoshi KataiHidetoshi Okabe
- Topics
- Gastric Cancer Management and Outcomes (100 papers)Helicobacter pylori-related gastroenterology studies (63 papers)Gastrointestinal Tumor Research and Treatment (49 papers)
- Journals
- Journal of Clinical OncologySHILAP Revista de lepidopterologíaGastroenterology
- Partner nations
- JapanUnited StatesGermany
In The Last Decade
Ryoji Kushima
297 papers receiving 6.9k citations
Peers
Comparison fields: 5 of 119
- Pulmonary and Respiratory Medicine 3.0k
- Surgery 2.7k
- Oncology 2.0k
- Molecular Biology 1.5k
- Gastroenterology 1.2k
Countries citing papers authored by Ryoji Kushima
This map shows the geographic impact of Ryoji Kushima'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 Ryoji Kushima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoji Kushima more than expected).
Fields of papers citing papers by Ryoji Kushima
This network shows the impact of papers produced by Ryoji Kushima. 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 Ryoji Kushima. The network helps show where Ryoji Kushima may publish in the future.
Co-authorship network of co-authors of Ryoji Kushima
This figure shows the co-authorship network connecting the top 25 collaborators of Ryoji Kushima. A scholar is included among the top collaborators of Ryoji Kushima 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 Ryoji Kushima. Ryoji Kushima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 3 | |
| 2 | 0 | |
| 3 | 0 | |
| 4 | 1 | |
| 5 | 4 | |
| 6 | 4 | |
| 7 | 6 | |
| 8 | 6 | |
| 9 | 11 | |
| 10 | 28 | |
| 11 | 3 | |
| 12 | [Study of Eight Cases of Retroperitoneal Liposarcoma]. | 1 |
| 13 | 6 | |
| 14 | 11 | |
| 15 | 1 | |
| 16 | 45 | |
| 17 | 1 | |
| 18 | 0 | |
| 19 | 4 | |
| 20 | 1 |
About Ryoji Kushima
Ryoji Kushima is a scholar working on Gastroenterology, Pulmonary and Respiratory Medicine and Surgery, having authored 321 papers that have together received 7.1k indexed citations. Recurring topics across this work include Gastric Cancer Management and Outcomes (100 papers), Helicobacter pylori-related gastroenterology studies (63 papers) and Gastrointestinal Tumor Research and Treatment (49 papers). The work is most often cited by research in Gastroenterology (1.2k citations), Pulmonary and Respiratory Medicine (3.0k citations) and Oncology (2.0k citations). Ryoji Kushima has collaborated with scholars based in Japan, United States and Germany. Frequent co-authors include Takanori Hattori, Shigeki Sekine, Hitoshi Tsuda, Akihiko Yoshida, Hirokazu Taniguchi, F Borchard, Hitoshi Katai, Hidetoshi Okabe, Hisao Asamura and Hiroyuki Sugihara. Their work appears in journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Gastroenterology.
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.