Hisashi Doyama
- Pulmonary and Respiratory Medicine top 1%
- Surgery top 2%
- Gastroenterology top 0.5%
- Oncology top 10%
- Radiology, Nuclear Medicine and Imaging
- Co-authors
- Naohiro YoshidaKenshi YaoShinya YamadaHideki IshikawaNoriya UedoManabu MutoChizu YokoiKunihiro Tsuji
- Topics
- Gastric Cancer Management and Outcomes (58 papers)Helicobacter pylori-related gastroenterology studies (29 papers)Metastasis and carcinoma case studies (25 papers)
- Journals
- Journal of Clinical OncologySHILAP Revista de lepidopterologíaGastroenterology
- Partner nations
- JapanUnited StatesMalaysia
In The Last Decade
Hisashi Doyama
82 papers receiving 1.7k citations
Peers
Comparison fields: 5 of 80
- Pulmonary and Respiratory Medicine 1.5k
- Surgery 1.1k
- Gastroenterology 729
- Oncology 362
- Radiology, Nuclear Medicine and Imaging 50
Countries citing papers authored by Hisashi Doyama
This map shows the geographic impact of Hisashi Doyama'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 Hisashi Doyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hisashi Doyama more than expected).
Fields of papers citing papers by Hisashi Doyama
This network shows the impact of papers produced by Hisashi Doyama. 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 Hisashi Doyama. The network helps show where Hisashi Doyama may publish in the future.
Co-authorship network of co-authors of Hisashi Doyama
This figure shows the co-authorship network connecting the top 25 collaborators of Hisashi Doyama. A scholar is included among the top collaborators of Hisashi Doyama 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 Hisashi Doyama. Hisashi Doyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 2 | |
| 2 | 1 | |
| 3 | 1 | |
| 4 | 1 | |
| 5 | 75 | |
| 6 | 5 | |
| 7 | 0 | |
| 8 | 5 | |
| 9 | 56 | |
| 10 | 133 | |
| 11 | 68 | |
| 12 | 17 | |
| 13 | 38 | |
| 14 | 13 | |
| 15 | 106 | |
| 16 | 3 | |
| 17 | 9 | |
| 18 | 283 | |
| 19 | 1 | |
| 20 | 6 |
About Hisashi Doyama
Hisashi Doyama is a scholar working on Gastroenterology, Pulmonary and Respiratory Medicine and Surgery, having authored 87 papers that have together received 1.8k indexed citations. Recurring topics across this work include Gastric Cancer Management and Outcomes (58 papers), Helicobacter pylori-related gastroenterology studies (29 papers) and Metastasis and carcinoma case studies (25 papers). The work is most often cited by research in Gastroenterology (729 citations), Pulmonary and Respiratory Medicine (1.5k citations) and Surgery (1.1k citations). Hisashi Doyama has collaborated with scholars based in Japan, United States and Malaysia. Frequent co-authors include Naohiro Yoshida, Kenshi Yao, Shinya Yamada, Hideki Ishikawa, Noriya Uedo, Manabu Muto, Chizu Yokoi, Kunihiro Tsuji, Kenichi Takemura and Kazuhiro Kaneko. 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.