1. The fibrositis syndrome (non-articular rheumatism);Smythe,1972
2. Prevalence of primary and secondary fibrositis;Wolfe;J Rheumatol,1983
3. Fibrositis: symptom frequency and criteria for diagnosis;Wolfe,1985
4. Psychological status in primary fibrositis and fibrositis associated with rheumatoid arthritis;Wolfe;J Rheumatol,1984
5. Clinical characteristics of fibrositis. 1. A blinded, controlled study of symptoms and tender points;Campbell;Arthritis Rheum,1983