Jan J. Koornstra
- Oncology top 5%
- Surgery top 5%
- Pulmonary and Respiratory Medicine top 5%
- Pathology and Forensic Medicine top 5%
- Gastroenterology top 1%
- Co-authors
- Jan H. KleibeukerRinse K. WeersmaJessie WesterhofHarry HollemaHans F. A. VasenElisabeth G.E. de VriesEvelien DekkerMarian J.E. Mourits
- Topics
- Colorectal Cancer Screening and Detection (27 papers)Genetic factors in colorectal cancer (23 papers)Gastric Cancer Management and Outcomes (15 papers)
- Journals
- SHILAP Revista de lepidopterologíaGastroenterologyGut
- Partner nations
- NetherlandsGermanyUnited States
In The Last Decade
Jan J. Koornstra
54 papers receiving 1.5k citations
Peers
Comparison fields: 5 of 86
- Oncology 767
- Surgery 757
- Pulmonary and Respiratory Medicine 698
- Pathology and Forensic Medicine 455
- Gastroenterology 347
Countries citing papers authored by Jan J. Koornstra
This map shows the geographic impact of Jan J. Koornstra'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 Jan J. Koornstra with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Jan J. Koornstra more than expected).
Fields of papers citing papers by Jan J. Koornstra
This network shows the impact of papers produced by Jan J. Koornstra. 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 Jan J. Koornstra. The network helps show where Jan J. Koornstra may publish in the future.
Co-authorship network of co-authors of Jan J. Koornstra
This figure shows the co-authorship network connecting the top 25 collaborators of Jan J. Koornstra. A scholar is included among the top collaborators of Jan J. Koornstra 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 Jan J. Koornstra. Jan J. Koornstra is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 2 | |
| 2 | 3 | |
| 3 | 17 | |
| 4 | 5 | |
| 5 | 30 | |
| 6 | 19 | |
| 7 | 9 | |
| 8 | 70 | |
| 9 | 60 | |
| 10 | 9 | |
| 11 | 37 | |
| 12 | 17 | |
| 13 | 6 | |
| 14 | 16 | |
| 15 | 11 | |
| 16 | 54 | |
| 17 | 43 | |
| 18 | 108 | |
| 19 | 12 | |
| 20 | 3 |
About Jan J. Koornstra
Jan J. Koornstra is a scholar working on Gastroenterology, Oncology and Pathology and Forensic Medicine, having authored 55 papers that have together received 1.6k indexed citations. Recurring topics across this work include Colorectal Cancer Screening and Detection (27 papers), Genetic factors in colorectal cancer (23 papers) and Gastric Cancer Management and Outcomes (15 papers). The work is most often cited by research in Gastroenterology (347 citations), Oncology (767 citations) and Pathology and Forensic Medicine (455 citations). Jan J. Koornstra has collaborated with scholars based in Netherlands, Germany and United States. Frequent co-authors include Jan H. Kleibeuker, Rinse K. Weersma, Jessie Westerhof, Harry Hollema, Hans F. A. Vasen, Elisabeth G.E. de Vries, Evelien Dekker, Marian J.E. Mourits, Rolf H. Sijmons and Anna M. Leliveld. Their work appears in journals such as SHILAP Revista de lepidopterología, Gastroenterology and Gut.
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.