1. Internal Medicine Department; Autonomous University of Barcelona; Barcelona Spain
2. Department of Infectious Diseases; Vall d'Hebron General Hospital; Barcelona Spain
3. Department of Pneumology; Vall d'Hebron General Hospital; Barcelona Spain
4. Department of Rheumatology; Vall d'Hebron General Hospital; Barcelona Spain
5. Department of Epidemiology and Preventive Medicine; Vall d'Hebron General Hospital; Barcelona Spain