Assessment of functional capacity in fibromyalgia. Comparative analysis of construct validity of three functional scales Joaquim Esteve-Vives, Javier Rivera, Miguel A. Vallejo

Evaluation of patients with fibromyalgia. Comparative study of 4 Spanish versions of the Fibromyalgia Impact Questionnaire (FIQ) Joaquim Jordi Esteve Vives, Enrique Batlle Gualda

Fibromyalgia Health Assessment Questionnaire: Sensitivity to Change Milena Gobbo, Joaquim Esteve-Vives, Javier Rivera, Miguel Ángel Vallejo, Ruth Lopez-González