Takuma Okamura
- Gastroenterology top 5%
- Gastrointestinal Tumor Research and Treatment 12
- Gastroesophageal reflux and treatments 6
- Hepatology top 10%
- Surgery top 10%
- Helicobacter pylori-related gastroenterology studies 11
- Colorectal and Anal Carcinomas 7
- Eosinophilic Esophagitis 6
- Gastrointestinal disorders and treatments 5
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- Gastric Cancer Management and Outcomes 18
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- Colorectal Cancer Surgical Treatments 6
- Co-authors
- Yugo IwayaTomoaki SugaEiji TanakaKazuo OriiYoji IwasakiTadanobu NagayaYasuhiro TakaseNorikazu Arakura
- Cited by
- GastroenterologyHepatologySurgery
- Journals
- Journal of Clinical Oncology (2 papers)SHILAP Revista de lepidopterología (1 paper)Thorax (1 paper)
- Partner nations
- JapanUnited States
In The Last Decade
Takuma Okamura
45 papers receiving 418 citations
Peers
Comparison fields: 5 of 47
- Gastroenterology 106
- Hepatology 72
- Surgery 281
- Pulmonary and Respiratory Medicine 156
- Oncology 110
Countries citing papers authored by Takuma Okamura
This map shows the geographic impact of Takuma Okamura'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 Takuma Okamura with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Takuma Okamura more than expected).
Fields of papers citing papers by Takuma Okamura
This network shows the impact of papers produced by Takuma Okamura. 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 Takuma Okamura. The network helps show where Takuma Okamura may publish in the future.
Co-authorship network
The 25 scholars most cited alongside Takuma Okamura, 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 | 2025 | 1 | |
| 2 | 2025 | 1 | |
| 3 | 2024 | 1 | |
| 4 | 2024 | 3 | |
| 5 | 2024 | 0 | |
| 6 | 2024 | 0 | |
| 7 | 2023 | 4 | |
| 8 | 2023 | 2 | |
| 9 | 2021 | 4 | |
| 10 | 2020 | 3 | |
| 11 | 2018 | 22 | |
| 12 | 2018 | 9 | |
| 13 | 2017 | 9 | |
| 14 | 2016 | 28 | |
| 15 | 2015 | 24 | |
| 16 | 2014 | 23 | |
| 17 | 2013 | 5 | |
| 18 | 2013 | 2 | |
| 19 | 2012 | 13 | |
| 20 | 2011 | 0 |
About Takuma Okamura
Takuma Okamura is a scholar working on Gastroenterology, Surgery and Pulmonary and Respiratory Medicine, having authored 51 papers that have together received 437 indexed citations. Recurring topics across this work include Gastric Cancer Management and Outcomes (18 papers), Gastrointestinal Tumor Research and Treatment (12 papers), Helicobacter pylori-related gastroenterology studies (11 papers), Colorectal and Anal Carcinomas (7 papers), Gastroesophageal reflux and treatments (6 papers), Eosinophilic Esophagitis (6 papers), Colorectal Cancer Surgical Treatments (6 papers) and Gastrointestinal disorders and treatments (5 papers). The work is most often cited by research in Gastroenterology (106 citations), Hepatology (72 citations) and Surgery (281 citations). Takuma Okamura has collaborated with scholars based in Japan and United States. Frequent co-authors include Yugo Iwaya, Tomoaki Suga, Eiji Tanaka, Kazuo Orii, Yoji Iwasaki, Tadanobu Nagaya, Yasuhiro Takase, Norikazu Arakura, Hitoshi Kameyama and Toshifumi Wakai. Their work appears in journals such as Journal of Clinical Oncology, SHILAP Revista de lepidopterología and Thorax.
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.