Norihiko Oka
- Cardiology and Cardiovascular Medicine top 10%
- Epidemiology
- Pulmonary and Respiratory Medicine
- Surgery
- Pathology and Forensic Medicine
- Co-authors
- Kagami MiyajiKeiichi ItataniTadashi KitamuraChristopher A. CaldaroneTetsuya HoraiLixing WangOsami HonjoKouki Nakashima
- Topics
- Congenital Heart Disease Studies (25 papers)Cardiac Valve Diseases and Treatments (13 papers)Cardiac Structural Anomalies and Repair (13 papers)
In The Last Decade
Norihiko Oka
41 papers receiving 424 citations
Peers
Comparison fields: 5 of 55
- Cardiology and Cardiovascular Medicine 189
- Epidemiology 180
- Pulmonary and Respiratory Medicine 175
- Surgery 157
- Pathology and Forensic Medicine 81
Countries citing papers authored by Norihiko Oka
This map shows the geographic impact of Norihiko Oka'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 Norihiko Oka with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Norihiko Oka more than expected).
Fields of papers citing papers by Norihiko Oka
This network shows the impact of papers produced by Norihiko Oka. 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 Norihiko Oka. The network helps show where Norihiko Oka may publish in the future.
Co-authorship network of co-authors of Norihiko Oka
This figure shows the co-authorship network connecting the top 25 collaborators of Norihiko Oka. A scholar is included among the top collaborators of Norihiko Oka 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 Norihiko Oka. Norihiko Oka is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 0 | |
| 2 | 1 | |
| 3 | 2 | |
| 4 | 10 | |
| 5 | 9 | |
| 6 | 13 | |
| 7 | 23 | |
| 8 | 2 | |
| 9 | 5 | |
| 10 | 16 | |
| 11 | 6 | |
| 12 | 20 | |
| 13 | 2 | |
| 14 | 2 | |
| 15 | 2 | |
| 16 | 13 | |
| 17 | 15 | |
| 18 | 5 | |
| 19 | 41 | |
| 20 | 14 |
About Norihiko Oka
Norihiko Oka is a scholar working on Cardiology and Cardiovascular Medicine, Epidemiology and Surgery, having authored 44 papers that have together received 439 indexed citations. Recurring topics across this work include Congenital Heart Disease Studies (25 papers), Cardiac Valve Diseases and Treatments (13 papers) and Cardiac Structural Anomalies and Repair (13 papers). The work is most often cited by research in Developmental Neuroscience (42 citations), Cardiology and Cardiovascular Medicine (189 citations) and Emergency Medicine (62 citations). Norihiko Oka has collaborated with scholars based in Japan, Canada and Australia. Frequent co-authors include Kagami Miyaji, Keiichi Itatani, Tadashi Kitamura, Christopher A. Caldarone, Tetsuya Horai, Lixing Wang, Osami Honjo, Kouki Nakashima, Shohei Miyazaki and Wei Zhu. Their work appears in journals such as Journal of Thoracic and Cardiovascular Surgery, The Annals of Thoracic Surgery and International Journal of Cardiology.
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.