Experts document on methotrexate use in combined therapy with biological or targeted synthetic disease modifying drugs in patients with rheumatoid arthritis Jesús Tornero-Molina; Mercedes Alperi-López; Ivan Castellví; Juan José de Agustín-de Oro; Alejandro Escudero; Rosario García-Vicuña; Miguel Ángel González-Gay; Cristina Hidalgo; Esteban Rubio; Raimon Sanmartí; Núria Casamira; Jaime Calvo-Alén;

Effectiveness of intravenous tocilizumab in routine clinical practice in a cohort of Costa Rican patients with rheumatoid arthritis Mauricio Cordero-Alfaro; Carlos León-Céspedes; Allan Ramos-Esquivel;

Efficacy and safety of combined therapy with synthetic disease-modifying antirheumatic drugs in rheumatoid arthritis: Systematic literature review Jaime Calvo Alén; Trinidad Pérez; Susana Romero Yuste; Iván Ferraz-Amaro; Juan José Alegre Sancho; José Antonio Pinto Tasende; Francisco Maceiras Pan; Juan Carlos Quevedo; M. Vanesa Hernández-Hernández; Cristina Hidalgo Calleja; Alejandro San Martín Álvarez; María Isabel Tevar Sánchez; Raimon Sanmartí;