Peter Holger Johnsen

16 total papers · 695 total citations
9 papers, 394 citations indexed

About

Peter Holger Johnsen is a scholar working on Infectious Diseases, Gastroenterology and Epidemiology. According to data from OpenAlex, Peter Holger Johnsen has authored 9 papers receiving a total of 394 indexed citations (citations by other indexed papers that have themselves been cited), including 7 papers in Infectious Diseases, 7 papers in Gastroenterology and 5 papers in Epidemiology. Recurrent topics in Peter Holger Johnsen’s work include Clostridium difficile and Clostridium perfringens research (7 papers), Gastrointestinal motility and disorders (7 papers) and Microscopic Colitis (4 papers). Peter Holger Johnsen is often cited by papers focused on Clostridium difficile and Clostridium perfringens research (7 papers), Gastrointestinal motility and disorders (7 papers) and Microscopic Colitis (4 papers). Peter Holger Johnsen collaborates with scholars based in Norway. Peter Holger Johnsen's co-authors include Rasmus Goll, Per Christian Valle, Jorunn Pauline Cavanagh, Erik Hjerde, Joseph Diab, Kristian Holm, Øystein Arlov, Birgit Abelsen, Sveinung Wergeland Sørbye and Johannes R. Hov and has published in prestigious journals such as Atherosclerosis, BMJ Open and Scandinavian Journal of Gastroenterology.

Co-authorship network of co-authors of Peter Holger Johnsen

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

Peter Holger Johnsen

9 papers receiving 388 citations

Fields of papers citing papers by Peter Holger Johnsen

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Peter Holger Johnsen

Since Specialization
Citations

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

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