Rheumatoid arthritis: extra articular manifestations and comorbidities Carolina Díaz Cuña; Sandra Consani; Sofía Rostan; Lucía Fernández; Emilia Moreira; Raimon Sanmartí;

Inadequate sleep as a limiting factor in achieving remission in patients with rheumatoid arthritis Amarilis J. Pérez De Jesus; Nahir S. Pérez Soto; Miguel A. Vázquez Padua;

Validation of FACIT-fatigue in Spanish-speaking patients with rheumatoid arthritis Samantha Rodríguez-Muguruza; Sonia Castro; María José Poveda; Silvia Paredes; Delia Taverner; Oliver Valero; Ramon Fontova;