Tetsufumi Kojima
- Co-authors
- S. NiwaHirotoshi Dosaka‐AkitaTomobumi MishinaShinji OguraMotoi NishiFumihiro HommuraYoshikazu KawakamiHiroyuki Katoh
- Topics
- Gastrointestinal disorders and treatments (4 papers)Neuroendocrine Tumor Research Advances (3 papers)Pancreatic and Hepatic Oncology Research (3 papers)
- Partner nations
- JapanSwitzerlandUnited States
In The Last Decade
Tetsufumi Kojima
19 papers receiving 307 citations
Peers
Comparison fields: 5 of 53
- Surgery 182
- Pulmonary and Respiratory Medicine 109
- Oncology 109
- Neurology 51
- Molecular Biology 50
Countries citing papers authored by Tetsufumi Kojima
This map shows the geographic impact of Tetsufumi Kojima'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 Tetsufumi Kojima with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Tetsufumi Kojima more than expected).
Fields of papers citing papers by Tetsufumi Kojima
This network shows the impact of papers produced by Tetsufumi Kojima. 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 Tetsufumi Kojima. The network helps show where Tetsufumi Kojima may publish in the future.
Co-authorship network of co-authors of Tetsufumi Kojima
This figure shows the co-authorship network connecting the top 25 collaborators of Tetsufumi Kojima. A scholar is included among the top collaborators of Tetsufumi Kojima 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 Tetsufumi Kojima. Tetsufumi Kojima is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 6 | |
| 2 | 1 | |
| 3 | 17 | |
| 4 | 7 | |
| 5 | 3 | |
| 6 | 20 | |
| 7 | 17 | |
| 8 | A case of lung cancer with hypercalcemia which was incidentally complicated with primary hyperparathyroidism due to parathyroid adenoma. | 3 |
| 9 | 1 | |
| 10 | 1 | |
| 11 | Prognostic significance of p27KIP1 protein and ki-67 growth fraction in non-small cell lung cancers. | 98 |
| 12 | 0 | |
| 13 | 34 | |
| 14 | 1 | |
| 15 | 11 | |
| 16 | 3 | |
| 17 | 20 | |
| 18 | 6 | |
| 19 | 76 | |
| 20 | [A case of superficial carcinoma of the esophagus on esophageal varices]. | 0 |
About Tetsufumi Kojima
Tetsufumi Kojima is a scholar working on Hepatology, Surgery and Oncology, having authored 22 papers that have together received 327 indexed citations. Recurring topics across this work include Gastrointestinal disorders and treatments (4 papers), Neuroendocrine Tumor Research Advances (3 papers) and Pancreatic and Hepatic Oncology Research (3 papers). The work is most often cited by research in Surgery (182 citations), Oncology (109 citations) and Neurology (51 citations). Tetsufumi Kojima has collaborated with scholars based in Japan, Switzerland and United States. Frequent co-authors include S. Niwa, Hirotoshi Dosaka‐Akita, Tomobumi Mishina, Shinji Ogura, Motoi Nishi, Fumihiro Hommura, Yoshikazu Kawakami, Hiroyuki Katoh, Takayuki Nojima and Kazuo Nagashima. Their work appears in journals such as Journal of neurosurgery, Human Pathology and World Journal of Surgery.
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.