Claes Friman

2.9k total citations
60 papers, 1.5k citations indexed

About

Claes Friman is a scholar working on Rheumatology, Cell Biology and Immunology. According to data from OpenAlex, Claes Friman has authored 60 papers receiving a total of 1.5k indexed citations (citations by other indexed papers that have themselves been cited), including 31 papers in Rheumatology, 18 papers in Cell Biology and 12 papers in Immunology. Recurrent topics in Claes Friman's work include Proteoglycans and glycosaminoglycans research (16 papers), Systemic Lupus Erythematosus Research (14 papers) and Rheumatoid Arthritis Research and Therapies (9 papers). Claes Friman is often cited by papers focused on Proteoglycans and glycosaminoglycans research (16 papers), Systemic Lupus Erythematosus Research (14 papers) and Rheumatoid Arthritis Research and Therapies (9 papers). Claes Friman collaborates with scholars based in Finland, United States and Denmark. Claes Friman's co-authors include Tom Pettersson, Heikki Julkunen, Risto Kaaja, L Teppo, ­Eero Pukkala, Tapio Videman, Dan Nordström, Yrjö T. Konttinen, Pekka Kurki and Herkko Saari and has published in prestigious journals such as The Lancet, Gastroenterology and Hepatology.

In The Last Decade

Claes Friman

59 papers receiving 1.4k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Claes Friman Finland 21 624 241 214 187 181 60 1.5k
E M Veys Belgium 25 1.0k 1.7× 235 1.0× 415 1.9× 89 0.5× 138 0.8× 76 1.8k
K. Tamaki Japan 16 539 0.9× 166 0.7× 255 1.2× 67 0.4× 267 1.5× 59 1.5k
Warren D. Blackburn United States 23 451 0.7× 232 1.0× 279 1.3× 44 0.2× 105 0.6× 46 1.3k
P A Guerne Switzerland 10 969 1.6× 343 1.4× 302 1.4× 61 0.3× 90 0.5× 17 1.8k
P.G. NORRIS United Kingdom 30 361 0.6× 631 2.6× 660 3.1× 200 1.1× 222 1.2× 85 2.5k
Allen D. Sawitzke United States 20 1.1k 1.8× 173 0.7× 646 3.0× 116 0.6× 276 1.5× 50 1.9k
Hiroaki Matsuno Japan 31 984 1.6× 636 2.6× 593 2.8× 121 0.6× 222 1.2× 100 2.4k
M.H.A. RUSTIN United Kingdom 25 196 0.3× 126 0.5× 278 1.3× 121 0.6× 325 1.8× 74 1.6k
Ümit Türsen Türkiye 22 464 0.7× 218 0.9× 329 1.5× 169 0.9× 188 1.0× 112 2.1k
George Gallagher United States 26 371 0.6× 459 1.9× 254 1.2× 77 0.4× 280 1.5× 78 2.0k

Countries citing papers authored by Claes Friman

Since Specialization
Citations

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

Fields of papers citing papers by Claes Friman

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Claes Friman

This figure shows the co-authorship network connecting the top 25 collaborators of Claes Friman. A scholar is included among the top collaborators of Claes Friman 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 Claes Friman. Claes Friman 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.
Valleala, Heikki, Kalevi Laitinen, Liisa Pylkkänen, Yrjö T. Konttinen, & Claes Friman. (2001). Clinical and biochemical response to single infusion of clodronate in active rheumatoid arthritis - a double blind placebo controlled study. Inflammation Research. 50(12). 598–601. 9 indexed citations
2.
Lindroth, Ylva, Ingiäld Hafström, Curtis J. Henrich, et al.. (1997). Availability of iron and degree of inflammation modifies the response to recombinant human erythropoietin when treating anemia of chronic disease in patients with rheumatoid arthritis. Rheumatology International. 17(2). 67–73. 28 indexed citations
3.
Nordström, Dan, Otso Lindy, Yrjö T. Konttinen, et al.. (1996). Cathepsin G and elastase in synovial fluid and peripheral blood in reactive and rheumatoid arthritis. Clinical Rheumatology. 15(1). 35–41. 18 indexed citations
4.
Wesslén, Lars, Olle Lindquist, Eva Hjelm, et al.. (1996). An increase in sudden unexpected cardiac deaths among young Swedish orienteers during 1979-1992. European Heart Journal. 17(6). 902–910. 92 indexed citations
5.
Friman, Claes & Tom Pettersson. (1996). Amyloidosis. Current Opinion in Rheumatology. 8(1). 62–71. 18 indexed citations
6.
Nordström, Dan, et al.. (1995). Alpha-linolenic acid in the treatment of rheumatoid arthritis. A double-blind, placebo-controlled and randomized study: flaxseed vs. safflower seed. Rheumatology International. 14(6). 231–234. 65 indexed citations
7.
Julkunen, Heikki, et al.. (1995). Fetal outcome in women with primary Sjögren's syndrome. A retrospective case-control study.. PubMed. 13(1). 65–71. 37 indexed citations
8.
9.
Julkunen, Heikki, Risto Kaaja, & Claes Friman. (1993). CONTRACEPTIVE PRACTICE IN WOMEN WITH SYSTEMIC LUPUS ERYTHEMATOSUS. Lara D. Veeken. 32(3). 227–230. 48 indexed citations
10.
Saari, Herkko, Y T Konttinen, Claes Friman, & Timo Sorsa. (1993). Differential effects of reactive oxygen species on native synovial fluid and purified human umbilical cord hyaluronate. Inflammation. 17(4). 403–415. 74 indexed citations
11.
Gripenberg, M, A.-M. Teppo, & Claes Friman. (1991). Antibodies to Sm and SS-A demonstrated by enzyme immunoassay. Rheumatology International. 11(4-5). 209–213. 11 indexed citations
12.
Konttinen, Yrjö T., Tom Pettersson, Pertti Kemppinen, & Claes Friman. (1990). Spontaneous and in vitro activation of synovial fluid and peripheral blood lymphocytes in rheumatoid arthritis. Clinical Rheumatology. 9(3). 325–332. 3 indexed citations
13.
Bergroth, Ville, Yrjö T. Konttinen, P. Pelkonen, et al.. (1988). Synovial fluid lymphocytes in different subtypes of juvenile rheumatoid arthritis. Arthritis & Rheumatism. 31(6). 780–783. 13 indexed citations
14.
Friman, Claes, et al.. (1987). Plasma glycosaminoglycans in systemic lupus erythematosus.. PubMed. 14(6). 1132–4. 16 indexed citations
15.
Friman, Claes, et al.. (1984). Suppression of superoxide generation by normal polymorphonuclear leucocytes preincubated in plasma from patients with rheumatoid arthritis and neutropenia.. PubMed. 62(2). 89–90. 1 indexed citations
16.
Riska, H., et al.. (1978). [Exudative pleural effusion].. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 94(8). 490–7.
17.
Videman, Tapio, et al.. (1978). Glycosaminoglycan Metabolism in Experimental Osteoarthrosis Caused by Immobilization. Acta Orthopaedica Scandinavica. 49(4). 329–334. 61 indexed citations
18.
Friman, Claes, et al.. (1974). Transiently increased urinary excretion of low-sulphated heparan sulphate in psoriatic erythroderma associated with benign gammopathy. Clinica Chimica Acta. 57(1). 103–107. 13 indexed citations
19.
Friman, Claes, et al.. (1974). YERSINIA ENTEROCOLITICA INFECTION AND THYROID DISORDERS. The Lancet. 304(7896). 1565–1566. 4 indexed citations
20.
Wegelius, Otto & Claes Friman. (1964). Two Different Pituitary‐controlled Sulphation Mechanisms in the Rat1). Acta Medica Scandinavica. 175(s412). 221–228. 5 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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