1.
Wolfe F, Smythe HA, Yunus MB, Bennett RM, Bombardier C, Goldenberg DL, Tugwell P, Campbell SM, Abeles M, Clark P, et al: The American College of Rheumatology 1990 Criteria for the classifi cation of fi bromyalgia. Report of the Multicenter Criteria Committee. Arthritis Rheum 1990, 33(2), 160-172.