1. Department of Neuroscience, Center for Neurovirology and Comprehensive NeuroAIDS Center; Lewis Katz School of Medicine at Temple University; Philadelphia Pennsylvania USA
2. Department of Health Sciences and Infectious Diseases; Sapienza University; Rome Italy
3. Department of Biomedical, Surgical and Dental Sciences; University of Milano; Milano Italy
4. Department of Neurology; University of Pennsylvania Perelman School of Medicine; Philadelphia PA USA