El viaje del paciente con fibromialgia en Latinoamérica Teresa Otón; Osvaldo Daniel Messina; Daniel G. Fernández Ávila; Manuel Robles San Román; Darío Mata; Constanza Arguissain; Jorge Miguel Galindo Guzmán; Marina Pérez; Loreto Carmona;

Disease burden and costs for patients with hip and knee osteoarthritis and chronic moderate-to-severe refractory pain on treatment with strong opioids in Spain Antoni Sicras-Mainar; Javier Rejas-Gutierrez; Francisco Vargas-Negrín; Juan Carlos Tornero-Tornero; Aram Sicras-Navarro; Isabel Lizarraga;