Salaffi, F., A. Ciapetti, P. Sarzi Puttini, F. Atzeni, C. Iannuccelli, M. Di Franco, M. Cazzola, and L. Bazzichi. “Preliminary Identification of Key Clinical Domains for Outcome Evaluation in Fibromyalgia Using the Delphi Method: The Italian Experience”. Reumatismo 64, no. 1 (March 19, 2012): 27-34. Accessed October 26, 2020. https://reumatismo.org/index.php/reuma/article/view/reumatismo.2012.27.