Affiliation: | 1. Rheumatology Division, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain;2. Rheumatology Division, Hospital Universitario Puerta del Hierro Majadahonda, Madrid, Spain;3. Rheumatology Division, Hospital Universitario Virgen Macarena, Sevilla, Spain;4. Health Sciences School, Universidad Camilo José Cela, Madrid, Spain;5. Department of Medicine, Facultad de Medicina, Universidad de Santiago, Santiago de Compostela, Spain |