1. HIV Research Chelsea & Westminster Hospital, London, United Kingdom.
2. Infectious Diseases & AIDS Unit, University of Barcelona, Barcelona, Spain.
3. Department of Experimental Medicine, University of Rome, “Tor Vergata,” Rome, Italy.
4. Department of Preventive and Social Medicine, Faculty of Medicine, Siriraj Hospital, Mahidol University, Bangkok, Thailand.
5. AIDS Research Laboratory, Hospital Universitario Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil.
6. Division of Clinical Immunology, Immune Deficiency Treatment Centre, McGill University, Montreal, Quebec, Canada.