Authors: F C Arnett; S M Edworthy; D A Bloch; D J McShane; J F Fries; N S Cooper; L A Healey; S R Kaplan; M H Liang; H S Luthra Journal: Arthritis Rheum Date: 1988-03
Authors: D T Felson; J J Anderson; M Boers; C Bombardier; M Chernoff; B Fried; D Furst; C Goldsmith; S Kieszak; R Lightfoot Journal: Arthritis Rheum Date: 1993-06