Geir Johnsen

6 papers and 331 indexed citations
i
.

About

Geir Johnsen is a scholar working on Infectious Diseases, Molecular Biology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Geir Johnsen has authored 6 papers receiving a total of 331 indexed citations (citations by other indexed papers that have themselves been cited), including 2 papers in Infectious Diseases, 1 paper in Molecular Biology and 1 paper in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Geir Johnsen’s work include Antimicrobial Resistance in Staphylococcus (2 papers), Child Nutrition and Water Access (1 paper) and Antibiotic Resistance in Bacteria (1 paper). Geir Johnsen is often cited by papers focused on Antimicrobial Resistance in Staphylococcus (2 papers), Child Nutrition and Water Access (1 paper) and Antibiotic Resistance in Bacteria (1 paper). Geir Johnsen collaborates with scholars based in Norway. Geir Johnsen's co-authors include Jan Mangerud, P.E. Kaland, John Inge Svendsen, Stein Bondevik, S. Elsayed, Liv Marit Rørvik, V Hasseltvedt, Bjørn G Iversen, Jorge H. Leitão and Georg Kapperud and has published in prestigious journals such as Journal of Clinical Microbiology, Molecular Immunology and Boreas.

In The Last Decade

Co-authorship network of co-authors of Geir Johnsen

This figure shows the co-authorship network connecting the top 25 collaborators of Geir Johnsen. A scholar is included among the top collaborators of Geir Johnsen 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 Geir Johnsen. Geir Johnsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

Fields of papers citing papers by Geir Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Geir Johnsen. 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 Geir Johnsen. The network helps show where Geir Johnsen may publish in the future.

Countries citing papers authored by Geir Johnsen

Since Specialization
Citations

This map shows the geographic impact of Geir Johnsen'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 Geir Johnsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Geir Johnsen 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
2026