1.) 1998, Missouri Arthritis Rehabilitation Research and Training Center
2.) May 1993 Compendium, July 1993, January 1994
3.) Wolfe F et al The American College of Rheumatology 1990 Criteria for the classification of Fibromyalgia Report on Multicentre Criteria Committee Arthritis Rheum 33:2;160-172, 1990
4.) Management of fibromyalgia L. Leventhal, Ann Intern Med, 1999, vol. 131, pp. 850–858 as summarized by Robert W. Griffith, MD