Kaj Johansen
- Surgery top 0.5%
- Pulmonary and Respiratory Medicine top 0.5%
- Epidemiology top 2%
- Cardiology and Cardiovascular Medicine top 2%
- Emergency Medicine top 1%
- Co-authors
- Sigvard T. HansenDavid L. HelfetStephen C. NichollsMichael DainesKim LynchMark H. MeissnerTed R. KohlerTom Howey
- Topics
- Vascular Procedures and Complications (19 papers)Aortic aneurysm repair treatments (18 papers)Peripheral Artery Disease Management (16 papers)
- Journals
- JAMACirculationHepatology
- Partner nations
- United StatesCanadaSweden
In The Last Decade
Kaj Johansen
107 papers receiving 4.5k citations
Hit Papers
Peers
Comparison fields: 5 of 137
- Surgery 3.2k
- Pulmonary and Respiratory Medicine 2.4k
- Epidemiology 1.3k
- Cardiology and Cardiovascular Medicine 831
- Emergency Medicine 425
Countries citing papers authored by Kaj Johansen
This map shows the geographic impact of Kaj Johansen'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 Kaj Johansen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Kaj Johansen more than expected).
Fields of papers citing papers by Kaj Johansen
This network shows the impact of papers produced by Kaj Johansen. 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 Kaj Johansen. The network helps show where Kaj Johansen may publish in the future.
Co-authorship network of co-authors of Kaj Johansen
This figure shows the co-authorship network connecting the top 25 collaborators of Kaj Johansen. A scholar is included among the top collaborators of Kaj Johansen 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 Kaj Johansen. Kaj Johansen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 15 | |
| 2 | 2 | |
| 3 | 181 | |
| 4 | 7 | |
| 5 | 11 | |
| 6 | 16 | |
| 7 | 38 | |
| 8 | 204 | |
| 9 | 10 | |
| 10 | 29 | |
| 11 | 2 | |
| 12 | 11 | |
| 13 | 88 | |
| 14 | [Arteriosclerosis of the lower extremities--patients' contacts with alternative therapists]. | 1 |
| 15 | 126 | |
| 16 | 13 | |
| 17 | 17 | |
| 18 | 42 | |
| 19 | 3 | |
| 20 | 8 |
About Kaj Johansen
Kaj Johansen is a scholar working on Internal Medicine, Hepatology and Surgery, having authored 110 papers that have together received 4.9k indexed citations. Recurring topics across this work include Vascular Procedures and Complications (19 papers), Aortic aneurysm repair treatments (18 papers) and Peripheral Artery Disease Management (16 papers). The work is most often cited by research in Pulmonary and Respiratory Medicine (2.4k citations), Surgery (3.2k citations) and Internal Medicine (227 citations). Kaj Johansen has collaborated with scholars based in United States, Canada and Sweden. Frequent co-authors include Sigvard T. Hansen, David L. Helfet, Stephen C. Nicholls, Michael Daines, Kim Lynch, Mark H. Meissner, Ted R. Kohler, Tom Howey, Robert D. Sanders and Alexander W. Clowes. Their work appears in journals such as JAMA, Circulation and Hepatology.
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.