Per Ivar Gaarder

2.4k total citations
64 papers, 1.9k citations indexed

About

Per Ivar Gaarder is a scholar working on Health, Toxicology and Mutagenesis, Immunology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Per Ivar Gaarder has authored 64 papers receiving a total of 1.9k indexed citations (citations by other indexed papers that have themselves been cited), including 18 papers in Health, Toxicology and Mutagenesis, 14 papers in Immunology and 13 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Per Ivar Gaarder's work include Monoclonal and Polyclonal Antibodies Research (13 papers), Air Quality and Health Impacts (10 papers) and Glycosylation and Glycoproteins Research (9 papers). Per Ivar Gaarder is often cited by papers focused on Monoclonal and Polyclonal Antibodies Research (13 papers), Air Quality and Health Impacts (10 papers) and Glycosylation and Glycoproteins Research (9 papers). Per Ivar Gaarder collaborates with scholars based in Norway, Netherlands and Denmark. Per Ivar Gaarder's co-authors include Martinus Løvik, J. B. Natvig, Silje Watterdal Syversen, Per Nafstad, Jouni J. K. Jaakkola, Sigrid Ødegård, Guro Løvik Goll, Désirée van der Heijde, Per Magnus and Tore K Kvien and has published in prestigious journals such as The Journal of Immunology, The Science of The Total Environment and American Journal of Respiratory and Critical Care Medicine.

In The Last Decade

Per Ivar Gaarder

64 papers receiving 1.8k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Per Ivar Gaarder Norway 24 515 491 302 289 272 64 1.9k
Per Larsson Sweden 29 114 0.2× 1.0k 2.1× 1.2k 3.9× 232 0.8× 293 1.1× 96 2.8k
Eugenia Fishbein Mexico 19 255 0.5× 339 0.7× 348 1.2× 92 0.3× 255 0.9× 36 1.3k
Ying‐Chu Lin Taiwan 30 382 0.7× 189 0.4× 194 0.6× 465 1.6× 51 0.2× 112 2.5k
C. Magnus Sköld Sweden 30 171 0.3× 420 0.9× 575 1.9× 750 2.6× 177 0.7× 65 2.8k
Joachim Lundahl Sweden 29 171 0.3× 193 0.4× 818 2.7× 724 2.5× 47 0.2× 131 2.6k
Merlin R. Wilson United States 16 85 0.2× 605 1.2× 364 1.2× 110 0.4× 389 1.4× 22 1.3k
Russell A. Harley United States 28 131 0.3× 140 0.3× 240 0.8× 112 0.4× 134 0.5× 70 2.3k
M. Meurer Germany 24 37 0.1× 361 0.7× 380 1.3× 163 0.6× 73 0.3× 104 1.8k
Maria P. McGee United States 14 389 0.8× 125 0.3× 117 0.4× 137 0.5× 22 0.1× 47 1.2k
Andrej Khandoga Germany 28 296 0.6× 49 0.1× 624 2.1× 115 0.4× 48 0.2× 51 2.3k

Countries citing papers authored by Per Ivar Gaarder

Since Specialization
Citations

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

Fields of papers citing papers by Per Ivar Gaarder

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Per Ivar Gaarder. 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 Per Ivar Gaarder. The network helps show where Per Ivar Gaarder may publish in the future.

Co-authorship network of co-authors of Per Ivar Gaarder

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

All Works

20 of 20 papers shown
1.
Bakke, Per, Amund Gulsvik, Sreekumar Pillai, et al.. (2010). α;1-Antitrypsin Protease Inhibitor MZ Heterozygosity Is Associated With Airflow Obstruction in Two Large Cohorts. CHEST Journal. 138(5). 1125–1132. 51 indexed citations
2.
Skattum, Jorunn, Johann Baptist Dormagen, Ingeborg S. Aaberge, et al.. (2010). Preserved splenic function after angioembolisation of high grade injury. Injury. 43(1). 62–66. 35 indexed citations
3.
Bøyesen, Pernille, Mari Hoff, Sigrid Ødegård, et al.. (2009). Antibodies to cyclic citrullinated protein and erythrocyte sedimentation rate predict hand bone loss in patients with rheumatoid arthritis of short duration: a longitudinal study. Arthritis Research & Therapy. 11(4). R103–R103. 38 indexed citations
4.
Syversen, Silje Watterdal, Per Ivar Gaarder, Guro Løvik Goll, et al.. (2007). High anti-cyclic citrullinated peptide levels and an algorithm of four variables predict radiographic progression in patients with rheumatoid arthritis: results from a 10-year longitudinal study. Annals of the Rheumatic Diseases. 67(2). 212–217. 241 indexed citations
5.
Flores‐Montero, Juan, Sandra Quijano, María Luz Sánchez, et al.. (2006). Impact of BCR/ABL gene expression on the proliferative rate of different subpopulations of haematopoietic cells in chronic myeloid leukaemia. British Journal of Haematology. 135(1). 43–51. 21 indexed citations
6.
Løvik, Martinus, et al.. (2006). Popliteal lymph node (PLN) assay to study adjuvant effects on respiratory allergy. Methods. 41(1). 72–79. 14 indexed citations
7.
Efskind, J, et al.. (2006). Renal function of chloralkali workers after the cessation of exposure to mercury vapor. Scandinavian Journal of Work Environment & Health. 32(3). 241–249. 7 indexed citations
8.
Ormaasen, Vidar, Johan N. Bruun, Leiv Sandvik, Mona Holberg‐Petersen, & Per Ivar Gaarder. (2003). Prognostic Value of Changes in CD4 Count and HIV RNA During the First Six Months on Highly Active Antiretroviral Therapy in Chronic Human Immunodeficiency Virus Infection. Scandinavian Journal of Infectious Diseases. 35(6-7). 383–388. 8 indexed citations
9.
Nafstad, Per, Per Magnus, Per Ivar Gaarder, & Jouni J. K. Jaakkola. (2001). Exposure to pets and atopy‐related diseases in the first 4 years of life. Allergy. 56(4). 307–312. 174 indexed citations
10.
Abebe, Fekadu, Per Ivar Gaarder, Beyene Petros, & Svein Gunnar Gundersen. (2001). Age‐ and sex‐related differences in antibody responses against Schistosoma mansoni soluble egg antigen in a cohort of school children in Ethiopia. Apmis. 109(12). 816–824. 8 indexed citations
11.
Ellingsen, Dag G., J Efskind, K. Berg, Per Ivar Gaarder, & Yngvar Thomassen. (2000). Renal and immunologic markers for chloralkali workers with low exposure to mercury vapor. Scandinavian Journal of Work Environment & Health. 26(5). 427–435. 35 indexed citations
12.
Nafstad, Per, et al.. (1998). Residential Dampness Problems and Symptoms and Signs of Bronchial Obstruction in Young Norwegian Children. American Journal of Respiratory and Critical Care Medicine. 157(2). 410–414. 83 indexed citations
13.
Ormstad, Heidi, et al.. (1998). Human IgE production in hu-PBL-SCID mice injected with birch pollen and diesel exhaust particles. Toxicology. 128(3). 219–230. 10 indexed citations
14.
Alexander, Jan, et al.. (1996). PCDDs, PCDFs, and PCBs in human blood in relation to consumption of crabs from a contaminated Fjord area in Norway.. Environmental Health Perspectives. 104(7). 756–764. 76 indexed citations
15.
Løvik, Martinus, et al.. (1996). Halogenated Organic Compounds and the Human Immune System:Preliminary Report on a Study in Hobby Fishermen. Archives of toxicology. Supplement. 18. 15–20. 3 indexed citations
16.
Ellingsen, Dag G., Per Ivar Gaarder, & Helge Kjuus. (1994). An immunological study of chloralkali workers previously exposed to mercury vapour. Apmis. 102(1-6). 170–176. 10 indexed citations
17.
18.
Rognum, Torleiv O., K Kett, O. Fausa, et al.. (1989). Raised number of jejunal IgG2-producing cells in untreated adult coeliac disease compared with food allergy.. Gut. 30(11). 1574–1580. 7 indexed citations
19.
Gaarder, Per Ivar, et al.. (1988). Prevalence of thyroid dysfunction in elderly subjects. European Journal of Endocrinology. 117(1). 7–12. 61 indexed citations
20.
Michaelsen, Terje E., Audun Aase, & Per Ivar Gaarder. (1988). Human Rheumatoid Factor Reacting with Rabbit IgG but not with Human IgG. Scandinavian Journal of Rheumatology. 17(sup75). 164–171. 3 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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