1. Department of Internal Medicine, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Hospital Clínic, Barcelona 08036, Spain
2. Unit of Internal Medicine, University of Barcelona, Hospital Plató, Barcelona 08006, Spain
3. Economic & Administrative Unit, Clinical Institute of Medicine & Dermatology (ICMiD), Hospital Clínic, Barcelona 08036, Spain
4. Department of Neurology, Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), University of Barcelona, Hospital Clínic, Barcelona 08036, Spain