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Title
Classification and diagnostic criteria for psoriatic arthritis.
Authors
Helliwell, P S; Taylor, W J
Abstract
The study of psoriatic arthritis is difficult and has lagged behind the study of other arthropathies in that there are no universally agreed or properly validated case definitions.
Publication
Annals of the rheumatic diseases, 2005, Vol 64 Suppl 2, pii3