Gjermund Johnsen
- Surgery top 2%
- Pulmonary and Respiratory Medicine top 5%
- Gastroenterology top 2%
- Oncology
- Physiology
- Co-authors
- Ronald MårvikMagnus NilssonLars LundellHelge L. WaldumFredrik KlevebroSigne FrieslandIngunn HatlevollNils Glenjen
- Topics
- Bariatric Surgery and Outcomes (13 papers)Esophageal and GI Pathology (13 papers)Esophageal Cancer Research and Treatment (10 papers)
- Journals
- GastroenterologyPLoS ONECancer
- Partner nations
- NorwaySwedenUnited States
In The Last Decade
Gjermund Johnsen
43 papers receiving 1.5k citations
Hit Papers
Peers
Comparison fields: 5 of 96
- Surgery 1.1k
- Pulmonary and Respiratory Medicine 747
- Gastroenterology 232
- Oncology 185
- Physiology 164
Countries citing papers authored by Gjermund Johnsen
This map shows the geographic impact of Gjermund 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 Gjermund Johnsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gjermund Johnsen more than expected).
Fields of papers citing papers by Gjermund Johnsen
This network shows the impact of papers produced by Gjermund 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 Gjermund Johnsen. The network helps show where Gjermund Johnsen may publish in the future.
Co-authorship network of co-authors of Gjermund Johnsen
This figure shows the co-authorship network connecting the top 25 collaborators of Gjermund Johnsen. A scholar is included among the top collaborators of Gjermund 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 Gjermund Johnsen. Gjermund Johnsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.
All Works
| # | Work | Indexed citations |
|---|---|---|
| 1 | 1 | |
| 2 | 0 | |
| 3 | 2 | |
| 4 | 1 | |
| 5 | 7 | |
| 6 | 7 | |
| 7 | 15 | |
| 8 | 4 | |
| 9 | 6 | |
| 10 | 115 | |
| 11 | 21 | |
| 12 | 10 | |
| 13 | 28 | |
| 14 | 33 | |
| 15 | 11 | |
| 16 | 125 | |
| 17 | 9 | |
| 18 | 87 | |
| 19 | Open versus laparoscopic gastrojejunostomy for palliation in advanced pancreatic cancer. | 51 |
| 20 | 7 |
About Gjermund Johnsen
Gjermund Johnsen is a scholar working on Gastroenterology, Surgery and Pharmacy, having authored 49 papers that have together received 1.5k indexed citations. Recurring topics across this work include Bariatric Surgery and Outcomes (13 papers), Esophageal and GI Pathology (13 papers) and Esophageal Cancer Research and Treatment (10 papers). The work is most often cited by research in Gastroenterology (232 citations), Surgery (1.1k citations) and Pulmonary and Respiratory Medicine (747 citations). Gjermund Johnsen has collaborated with scholars based in Norway, Sweden and United States. Frequent co-authors include Ronald Mårvik, Magnus Nilsson, Lars Lundell, Helge L. Waldum, Fredrik Klevebro, Signe Friesland, Ingunn Hatlevoll, Nils Glenjen, Gabriella Alexandersson von Döbeln and Jon A. Tsai. Their work appears in journals such as Gastroenterology, PLoS ONE and Cancer.
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.