1. Departments of Neurology and HIV Medicine, St Vincent's Hospital and Peter Duncan Neurosciences Unit, St Vincent's Centre for Applied Medical Research , Sydney , Australia
2. Department of Infectious Disease, Faculty of Medicine, Imperial College London , London , United Kingdom
3. Genitourinary Medicine and HIV Department, St Mary's Hospital, Imperial College Healthcare NHS Trust , London , United Kingdom
4. Institute of HIV Research and Innovation , Bangkok , Thailand
5. Department of Neurology, Department of Medicine (Infectious Diseases), Weill Institute for Neurosciences, University of California , San Francisco, California , USA
6. Department of Psychiatry and Mental Health, Division of Neuropsychiatry, HIV Mental Health Research Unit, University of Cape Town , Cape Town , South Africa
7. Department of Medicine, Division of Geriatric Medicine, McGill University , Montreal, Quebec , Canada
8. Departments of Medicine and Psychiatry, University of California , San Diego, California , USA
9. National Institute on Drug Abuse , Rockville, Maryland , USA
10. Infectious Diseases Department, Lluita contra la SIDA i les Malalties Infeccioses Foundation, Germans Trias i Pujol Hospital , Badalona, Catalonia , Spain
11. Unit of Infectious Diseases, San Raffaele Scientific Institute , Milano , Italy
12. HIV and Aging Research Project , Palm Springs, California , USA