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;

Not the same, but is it the same? Cycling of biologic agents in rheumatoid arthritis. Experience in the Instituto Mexicano del Seguro Social Francisco Javier Aceves-Ávila; José Ramiro Hernández Vásquez; Sandra Sicsick; María de Lourdes Olguín Ortega; María Azucena Ramos Sánchez; Adelfia Urenda Quezada; Lizbet Tinajero Nieto; Freddy Jose Faccin; Miguel Angel Ramírez Ramírez; Natali Serra-Bonett; Angel Mario Coll Muñoz;