1. Lluita contra la Sida Foundation, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
2. Universitat de Vic-Universidad Central de Catalunya (UVIC-UCC), Vic, Spain
3. Department of Molecular and Clinical Pharmacology, University of Liverpool, Liverpool, UK
4. Department of Infectious Diseases, Hospital San Pedro-CIBIR, Logroño, Spain
5. AIDS Research Institute-IRSICAIXA, Hospital Universitari Germans Trias i Pujol, Universitat Autònoma de Barcelona, Badalona, Spain
6. Department of Medicine, University of Colorado, Aurora, CO, USA
7. Neuropsychology Unit-Brain, Cognition and Behavior: Clinical Research, Consorci Sanitari de Terrassa, Barcelona, Spain
8. Department of Medical and Surgical Sciences for Children & Adults, University of Modena and Reggio Emilia, Modena, Italy
9. University College Dublin School of Medicine and Medical Science, Dublin, Ireland
10. Geriatric Department, Hospital General Universitario Gregorio Marañón, Instituto de Investigación Sanitaria Gregorio Marañón, Facultad de Medicina, Universidad Complutense, CIBERFES, Madrid, Spain