Disease activity and risk of lymphoma in patients with rheumatoid arthritis: nested case-control study.
Baecklund
E
E
Department of Medicine, University Hospital, S-751 85 Uppsala, Sweden. Eva.Baecklund@swipnet.se
Ekbom
A
A
Sparén
P
P
Feltelius
N
N
Klareskog
L
L
D001172:Arthritis, Rheumatoid / Q000150:complications* / Q000473:pathology; D016022:Case-Control Studies; D015331:Cohort Studies; D006801:Humans; D007249:Inflammation / Q000473:pathology; D008223:Lymphoma / Q000209:etiology* / Q000473:pathology; D012307:Risk Factors