HIV-1-infection

• AOUI Verona - UOC Malattie Infettive e Tropicali c/o Policlinico GB Rossi — Verona, Italy

• Guy's & St. Thomas' NHS Foundation Trust — London, Greater London, United Kingdom

• Kamwala District Clinic — Lusaka, Zambia
• University Teaching Hospital — Lusaka, Zambia

• Alfred Hospital — Melbourne, Victoria, Australia

• Brighton & Sussex University Hospitals NHS Trust — Brighton, East Sussex, United Kingdom

• Erasmus MC — Rotterdam, Netherlands

• Center for Interdisciplinary Research on Nicotine Addiction, University of Pennsylvania — Philadelphia, Pennsylvania, United States

Not specified

• Partners in Health Research and Development — Thika, Kiambu County, Kenya

• AIDS Healthcare Foundation - Public Health Division — Los Angeles, California, United States