1. Basel Center for HIV Research, Division of Infectious Diseases, University Hospital Basel, Petersgraben 4, CH-4031, Basel, Switzerland
2. National Centre in HIV Epidemiology and Clinical Research, University of New South Wales, Sydney, NSW 2010, Australia
3. Thai Red Cross, AIDS Research Centre, Chulalongkorn University, 1871 Rama IV Road Bangkok 10330, Thailand
4. Institute for Medical Technology Assessment, Erasmus University, PO Box 1738, 3000 DR Rotterdam, The Netherlands
5. Uganda Cancer Institute, PO Box 39, Kampala, Uganda
6. The HIV Netherlands Australia Thailand Research Collaboration (HIV-NAT), Bangkok 10330, Thailand
7. Basel Center for HIV Research, Division of Infectious Diseases, University Hospital Basel, Petersgraben 4, CH-4031, Basel, Switzerland. mbattegay@uhbs.ch