Hitoshi Ojima
Impact in
Papers in
- Co-authors
- Hiroyuki Kuwano (55 shared papers)Katsuhiko Tsukada (27 shared papers)Tatsuya Miyazaki (31 shared papers)Masanobu Nakajima (24 shared papers)Yasuyuki Fukai (35 shared papers)Minoru Fukuchi (27 shared papers)Norihiro Masuda (20 shared papers)Makoto Sohda (32 shared papers)
- Journals
- Surgery Today (5 papers)British Journal of Cancer (4 papers)The American Journal of Surgery (3 papers)Annals of Oncology (3 papers)Esophagus (3 papers)
- Partner nations
- JapanUnited States
In The Last Decade
Hitoshi Ojima
89 papers receiving 3k citations
Hitoshi Ojima's Hit Papers
Peers
Comparison fields: 5 of 88
- Oncology 1.5k
- Surgery 913
- Radiology, Nuclear Medicine and Imaging 283
- Pulmonary and Respiratory Medicine 319
- Cancer Research 126
Countries citing papers authored by Hitoshi Ojima
This map shows the geographic impact of Hitoshi Ojima'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 Hitoshi Ojima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Hitoshi Ojima more than expected).
Fields of papers citing papers by Hitoshi Ojima
This network shows the impact of papers produced by Hitoshi Ojima. 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 Hitoshi Ojima. The network helps show where Hitoshi Ojima may publish in the future.
Co-authors
The 25 scholars most cited alongside Hitoshi Ojima, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.
All Works
Showing the 20 most-cited of 96 papers — load more, or switch the sort, to bring in the rest.
| # | Work | ||
|---|---|---|---|
| 1 | Adjuvant chemotherapy of S-1 versus gemcitabine for resected pancreatic cancer: a phase 3, open-label, randomised, non-inferiority trial (JASPAC 01) Hit paper breakdown → | 2016 | 870 |
| 2 | 2002 | 245 | |
| 3 | 2004 | 176 | |
| 4 | Panitumumab vs Bevacizumab Added to Standard First-line Chemotherapy and Overall Survival Among Patients With RAS Wild-type, Left-Sided Metastatic Colorectal Cancer Hit paper breakdown → | 2023 | 172 |
| 5 | 2021 | 145 | |
| 6 | 2002 | 75 | |
| 7 | 2021 | 69 | |
| 8 | 2024 | 69 | |
| 9 | Correlation of 18-F-fluorodeoxyglucose (FDG) accumulation with glucose transporter (Glut-1) expression in esophageal squamous cell carcinoma. | 2003 | 67 |
| 10 | 2003 | 64 | |
| 11 | 2003 | 54 | |
| 12 | 2006 | 48 | |
| 13 | Glut-1 glucose transporter expression in esophageal squamous cell carcinoma is associated with tumor aggressiveness. | 2003 | 46 |
| 14 | 2017 | 43 | |
| 15 | 2019 | 43 | |
| 16 | Comparison between whole-body positron emission tomography and bone scintigraphy in evaluating bony metastases of esophageal carcinomas. | 2006 | 42 |
| 17 | 2007 | 38 | |
| 18 | 1997 | 37 | |
| 19 | Classification of recurrent esophageal cancer after radical esophagectomy with two- or three-field lymphadenectomy. | 2005 | 36 |
| 20 | Preoperative serum vascular endothelial growth factor-C (VEGF-C) levels predict recurrence in patients with esophageal cancer. | 2008 | 32 |
About Hitoshi Ojima
Hitoshi Ojima is a scholar working on Oncology, Surgery, Pulmonary and Respiratory Medicine, Gastroenterology and Cancer Research, having authored 96 papers that have together received 3.1k indexed citations. Recurring topics across this work include Esophageal Cancer Research and Treatment (26 papers), Colorectal Cancer Treatments and Studies (20 papers), Colorectal Cancer Surgical Treatments (9 papers), Gastric Cancer Management and Outcomes (9 papers), Gastrointestinal Tumor Research and Treatment (5 papers), Medical Imaging Techniques and Applications (4 papers), Pancreatic and Hepatic Oncology Research (3 papers) and Colorectal Cancer Screening and Detection (3 papers). The work is most often cited by research in Oncology (1.5k citations), Surgery (913 citations), Radiology, Nuclear Medicine and Imaging (283 citations), Pulmonary and Respiratory Medicine (319 citations) and Cancer Research (126 citations). Hitoshi Ojima has collaborated with scholars based in Japan and United States. Frequent co-authors include Hiroyuki Kuwano, Katsuhiko Tsukada, Tatsuya Miyazaki, Masanobu Nakajima, Yasuyuki Fukai, Minoru Fukuchi, Norihiro Masuda, Makoto Sohda, Ryokuhei Manda and Keigo Endo. Their work appears in journals such as Surgery Today, British Journal of Cancer, The American Journal of Surgery, Annals of Oncology and Esophagus.
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.