1. Department of Medicine, School of Medicine, Makerere University College of Health Sciences, P.O. Box 7072, Kampala, Uganda
2. Infectious Diseases Research Collaboration, Mulago Hill Road, MUJHU3 Building. P.O. Box 7475, Kampala, Uganda
3. Department of Medicine, Nkozi University, St Raphael of St Francis Nsambya Hospital, P.O. Box 7146, Kampala, Uganda
4. Neurological and Behavioral Outcomes Center, University Hospitals Cleveland Medical Center, 11100 Euclid Avenue, Cleveland, OH 44106, USA