Harald Johnsen

836 total citations
23 papers, 666 citations indexed

About

Harald Johnsen is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Surgery. According to data from OpenAlex, Harald Johnsen has authored 23 papers receiving a total of 666 indexed citations (citations by other indexed papers that have themselves been cited), including 6 papers in Ophthalmology, 6 papers in Radiology, Nuclear Medicine and Imaging and 5 papers in Surgery. Recurrent topics in Harald Johnsen's work include Glaucoma and retinal disorders (6 papers), Retinal Diseases and Treatments (5 papers) and Corneal surgery and disorders (4 papers). Harald Johnsen is often cited by papers focused on Glaucoma and retinal disorders (6 papers), Retinal Diseases and Treatments (5 papers) and Corneal surgery and disorders (4 papers). Harald Johnsen collaborates with scholars based in Norway and Poland. Harald Johnsen's co-authors include Arne Åsberg, Morten Lindberg, Stein Hallan, Tor Elsås, Rigmor Austgulen, Terje Espevik, Sigmund Blika, Amund Ringvold, Elisabeth Qvigstad and Jostein Halgunset and has published in prestigious journals such as Critical Care Medicine, American Journal of Ophthalmology and American Journal of Kidney Diseases.

In The Last Decade

Harald Johnsen

23 papers receiving 638 citations

Peers

Harald Johnsen

NEPHR

OPHTH

RNMI

SURGE

EPIDE

Stéphane Quéré France

John Abrams United States

Ragnar Daníelsen Iceland

L E Gelin Sweden

Javid Sadjadi United States

Desiree A. Marshall United States

Ankit Rathod United States

Charles M. Boyd United States

Ekrem Doğan Türkiye

Evdoxia Gounari Greece

Stéphane Quéré France

Harald Johnsen

38 ×0.2

NEPHR

215 ×1.7

OPHTH

185 ×1.5

RNMI

109 ×0.9

SURGE

51 ×0.5

EPIDE

Citations per year, relative to Harald Johnsen Harald Johnsen (= 1×) peers Stéphane Quéré

Countries citing papers authored by Harald Johnsen

Since Specialization

Citations

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

Fields of papers citing papers by Harald Johnsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Harald Johnsen

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

All Works

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20 of 20 papers shown

Strømmen, Magnus, Bård Kulseng, Einar Vedul‐Kjelsås, et al.. (2009). Bariatric surgery or lifestyle intervention? An exploratory study of severely obese patients’ motivation for two different treatments. Obesity Research & Clinical Practice. 3(4). 193–201. 12 indexed citations

Grant, David, et al.. (2009). Effects of gadolinium contrast agents in naïve and nephrectomized rats: Relevance to nephrogenic systemic fibrosis. Acta Radiologica. 50(2). 156–169. 37 indexed citations

Solligård, Erik, Per Jynge, Kåre E. Tvedt, et al.. (2005). Gut luminal microdialysis of glycerol as a marker of intestinal ischemic injury and recovery. Critical Care Medicine. 33(10). 2278–2285. 32 indexed citations

Hallan, Stein, Arne Åsberg, Morten Lindberg, & Harald Johnsen. (2004). Validation of the modification of diet in renal disease formula for estimating GFR with special emphasis on calibration of the serum creatinine assay. American Journal of Kidney Diseases. 44(1). 84–93. 213 indexed citations

Solligård, Erik, Kåre E. Tvedt, Harald Johnsen, et al.. (2004). Intestinal injury after thoracic aortic cross-clamping in the pig. Journal of Surgical Research. 117(2). 283–295. 29 indexed citations

Johnsen, Harald, et al.. (2004). Gut barrier dysfunction as detected by intestinal luminal microdialysis. Intensive Care Medicine. 30(6). 1188–1194. 26 indexed citations

Bjørgaas, Marit R., Egil Haug, & Harald Johnsen. (1999). The Urinary Excretion of Deoxypyridinium Cross-Links is Higher in Diabetic Than in Nondiabetic Adolescents. Calcified Tissue International. 65(2). 121–124. 25 indexed citations

Bjørgaas, Marit, et al.. (1998). Urinary excretion of catecholamines in hospitalized and non-hospitalized healthy children and adolescents. Scandinavian Journal of Clinical and Laboratory Investigation. 58(4). 339–346. 2 indexed citations

Sand, Trond, et al.. (1998). [Neuralgic amyotrophy or an isolated lesion of the anterior interosseal nerve?].. PubMed. 118(12). 1856–60. 2 indexed citations

10.

Haaverstad, Rune, et al.. (1995). Lymph drainage and the development of post-reconstructive leg oedema is not influenced by the type of inguinal incision. A prospective randomised study in patients undergoing femoropopliteal bypass surgery. European Journal of Vascular and Endovascular Surgery. 10(3). 316–322. 23 indexed citations

11.

Elsås, Tor, et al.. (1994). Pressure increase following primary laser trabeculoplasty. Acta Ophthalmologica. 72(3). 297–302. 1 indexed citations

12.

Halgunset, Jostein, et al.. (1994). Cytokine levels in amniotic fluid and inflammatory changes in the placenta from normal deliveries at term. European Journal of Obstetrics & Gynecology and Reproductive Biology. 56(3). 153–160. 82 indexed citations

13.

Austgulen, Rigmor, et al.. (1993). Soluble receptors for tumor necrosis factor: occurrence in association with normal delivery at term.. PubMed. 82(3). 343–7. 17 indexed citations

14.

Elsås, Tor, et al.. (1991). Diurnal Intraocular Pressure After Successful Primary Laser Trabeculoplasty. American Journal of Ophthalmology. 112(1). 67–69. 7 indexed citations

15.

Elsås, Tor, et al.. (1991). Pilocarpine to prevent acute pressure increase following primary laser trabeculoplasty. Eye. 5(4). 390–394. 5 indexed citations

16.

Elsås, Tor, et al.. (1989). The immediate pressure response to primary laser trabeculoplasty ‐ a comparison of one‐and two‐stage treatment. Acta Ophthalmologica. 67(6). 664–668. 8 indexed citations

17.

Ringvold, Amund, Sigmund Blika, Tor Elsås, et al.. (1988). The Middle‐Norway eye‐screening study. Acta Ophthalmologica. 66(6). 652–658. 87 indexed citations

18.

Waldum, Helge L., et al.. (1986). Amylase, Pancreatic Isoamylase and Lipase in Serum before and after Endoscopic Pancreatography. Acta Medica Scandinavica. 219(3). 301–304. 9 indexed citations

19.

Ringvold, Amund, Harald Johnsen, & Sigmund Blika. (1985). Senile cataract and ascorbic acid loading. Acta Ophthalmologica. 63(3). 277–280. 14 indexed citations

20.

Johnsen, Harald, et al.. (1979). [Steroid-induced myopathy. Clinical and muscle pathologic aspects with a case report].. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 99(3). 163–4. 1 indexed citations

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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