1. Wolfe F, Anderson J, Harkness D, et al.: Work and disability status of persons with fibromyalgia. J Rheumatol 1997, 24:1171–1178.
2. Wolfe F, Smythe HA, Yunus MB, et al.: The American College of Rheumatology 1990 criteria for the classification of fibromyalgia. Report of the Multicenter Criteria Committee. Arthritis Rheum 1990, 33:160–172.
3. Turk DC, Okifuji A, Sinclair JD, Starz TW: Pain, disability and physical functioning in subgroups of patients with fibromyalgia. J Rheumatol 1996, 23:1255–1262.
4. Shaver JL, Wilbur J, Robinson FP, et al.: Women’s health issues with fibromyalgia syndrome. J Womens Health (Larchmt) 2006, 15:1035–1045.
5. Orellana C, Casado E, Masip M, et al.: Sexual dysfunction in fibromyalgia patients. Clin Exp Rheumatol 2008, 26:663–666.