1. Department of Pediatrics, David Geffen School of Medicine, University of California, Los Angeles
2. Office of the Global AIDS Coordinator and Health Diplomacy, US Department of State, Washington D.C
3. Westat, Rockville, Maryl
4. Hospital Federal dos Servidores do Estado, Rio de Janeiro, Brazil
5. Hospital Geral de Nova Iguaçu, Rio de Janeiro, Brazil
6. Laboratório de AIDS e Imunologia Molecular, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
7. Laboratório de Pesquisa Clínica em Doenças Sexualmente Transmissíveis e AIDS, Instituto de Pesquisa Clínica Evandro Chagas, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
8. Chris Hani Baragwanath Hospital, University of the Witwatersrand, Johannesburg
9. Department of Obstetrics and Gynecology, Stellenbosch University, Cape Town, South Africa
10. Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro
11. Hospital Conceicao, Porto Alegre, Brazil
12. Hospital Femina, Porto Alegre, Brazil
13. Elizabeth Glaser Pediatric AIDS Foundation, Washington D.C