Update of the Consensus Statement of the Spanish Society of Rheumatology on the use of biological and synthetic targeted therapies in rheumatoid arthritis José María Álvaro-Gracia Álvaro; Petra Díaz del Campo Fontecha; José Luis Andréu Sánchez; Alejandro Balsa Criado; Rafael Cáliz Cáliz; Isabel Castrejón Fernández; Hèctor Corominas; José A. Gómez Puerta; Sara Manrique Arija; Natalia Mena Vázquez; Ana Ortiz García; Chamaida Plasencia Rodríguez; Lucía Silva Fernández; Jesús Tornero Molina;

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;

Evaluation of thiol-disulfide homeostasis in active ankylosing spondylitis patients Medeni Arpa; Bayram ¿en; Münevver Serdaro¿lu Beyazal; Özcan Erel;