1. Infectious Diseases Department, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, Spain
2. HIV Unit, Hospital Universitario Doce de Octubre, imas12, UCM, Madrid, Spain
3. Institute of Clinical Infectious Diseases, Catholic University of Sacred Heart, Rome, Italy
4. Infectious Diseases Department, Hospital Universitari Vall d’Hebron, Barcelona, Spain
5. Clinical Biostatistics Unit and CIBERESP, Hospital Ramón y Cajal, IRYCIS, Madrid, Spain
6. Queen Mary University, London, UK
7. Centro Nacional de Epidemiología, Instituto Carlos III, Madrid, Spain
8. Hospital Clínic/Institut d’Investigacions Biomèdiques August Pi i Sunyer, University of Barcelona, Barcelona, Spain
9. UOC Malattie Infettive, Azienda Ospedaliera Universitaria Senese, and Department of Medical Biotechnologies, University of Siena, Siena, Italy
10. Hospital Universitario La Paz, IDIPAZ, Madrid, Spain