Update of the position paper of the Spanish Society of Rheumatology on biosimilar drugs Miguel Ángel Abad Hernández; José Luis Andreu; Alejandro Balsa Criado; Federico Díaz-González; José Vicente Moreno Muelas; Rubén Queiro Silva; Juan J. Gómez-Reino;

Consensus statement on the use of biosimilar drugs in immune-mediated diseases in Spain Emilio Monte-Boquet; Ángeles Florez; Guillermo José Alcaín Martínez; Agustí Sellas;

Recommendations by the Spanish Society of Rheumatology on the management of patients with fibromyalgia. Part II Javier Rivera Redondo; Petra Díaz del Campo Fontecha; Cayetano Alegre de Miquel; Miriam Almirall Bernabé; Benigno Casanueva Fernández; Cristina Castillo Ojeda; Antonio Collado Cruz; Pilar Montesó-Curto; Ángela Palao Tarrero; Eva Trillo Calvo; Miguel Ángel Vallejo Pareja; Noé Brito García; Carol Merino Argumánez; M. Nieves Plana Farras;