Kaj Johansen

111 papers and 4.6k indexed citations i.

About

Kaj Johansen is a scholar working on Surgery, Pulmonary and Respiratory Medicine and Epidemiology. According to data from OpenAlex, Kaj Johansen has authored 111 papers receiving a total of 4.6k indexed citations (citations by other indexed papers that have themselves been cited), including 77 papers in Surgery, 48 papers in Pulmonary and Respiratory Medicine and 31 papers in Epidemiology. Recurrent topics in Kaj Johansen’s work include Vascular Procedures and Complications (19 papers), Aortic aneurysm repair treatments (18 papers) and Peripheral Artery Disease Management (16 papers). Kaj Johansen is often cited by papers focused on Vascular Procedures and Complications (19 papers), Aortic aneurysm repair treatments (18 papers) and Peripheral Artery Disease Management (16 papers). Kaj Johansen collaborates with scholars based in United States, Canada and France. Kaj Johansen's co-authors include Sigvard T. Hansen, David L. Helfet, Stephen C. Nicholls, Kim Lynch, Michael Daines, Mark H. Meissner, Ted R. Kohler, Tom Howey, Robert D. Sanders and Alexander W. Clowes and has published in prestigious journals such as JAMA, Circulation and Hepatology.

In The Last Decade

Co-authorship network of co-authors of Kaj Johansen i

Fields of papers citing papers by Kaj Johansen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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.

Countries citing papers authored by Kaj Johansen

Since Specialization
Citations

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).

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2025