DEL GIORNO, Rosaria, Skaper, Stephen, Paladini, Antonella, Varrassi, Giustino, COACCIOLI, Stefano (2015). Palmitoylethanolamide in Fibromyalgia: Results from Prospective and Retrospective Observational Studies. PAIN AND THERAPY, vol. 4, p. 169-178, ISSN: 2193-651X, doi: 10.1007/s40122-015-0038-6
