Hisashi Doyama
- Gastroenterology top 0.5%
- Gastrointestinal Tumor Research and Treatment 18
-
- Gastric Cancer Management and Outcomes 58
- Metastasis and carcinoma case studies 25
- Surgery top 2%
- Helicobacter pylori-related gastroenterology studies 29
- Esophageal Cancer Research and Treatment 17
- Esophageal and GI Pathology 9
- Oncology top 10%
- Colorectal Cancer Treatments and Studies 6
- Colorectal Cancer Screening and Detection 4
- Co-authors
- Naohiro YoshidaKenshi YaoShinya YamadaHideki IshikawaNoriya UedoManabu MutoChizu YokoiKunihiro Tsuji
- Journals
- Journal of Clinical Oncology (3 papers)SHILAP Revista de lepidopterología (11 papers)Gastroenterology (5 papers)
- Partner nations
- JapanUnited StatesMalaysia
In The Last Decade
Hisashi Doyama
82 papers receiving 1.7k citations
Peers
Comparison fields: 5 of 80
- Gastroenterology 729
- Pulmonary and Respiratory Medicine 1.5k
- Surgery 1.1k
- Oncology 362
- Hepatology 28
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
The 25 scholars most cited alongside Hisashi Doyama, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
| # | Work | ||
|---|---|---|---|
| 1 | 2023 | 2 | |
| 2 | 2023 | 1 | |
| 3 | 2023 | 1 | |
| 4 | 2023 | 1 | |
| 5 | 2020 | 75 | |
| 6 | 2020 | 5 | |
| 7 | 2020 | 0 | |
| 8 | 2019 | 5 | |
| 9 | 2018 | 56 | |
| 10 | 2017 | 133 | |
| 11 | 2016 | 68 | |
| 12 | 2016 | 17 | |
| 13 | 2015 | 38 | |
| 14 | 2015 | 13 | |
| 15 | 2014 | 106 | |
| 16 | 2014 | 3 | |
| 17 | 2012 | 9 | |
| 18 | 2011 | 283 | |
| 19 | 2006 | 1 | |
| 20 | 2004 | 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), Metastasis and carcinoma case studies (25 papers), Gastrointestinal Tumor Research and Treatment (18 papers), Esophageal Cancer Research and Treatment (17 papers), Esophageal and GI Pathology (9 papers), Colorectal Cancer Treatments and Studies (6 papers) and Colorectal Cancer Screening and Detection (4 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.