1. Department of Medicine, Division of Prevention Sciences, University of California, San Francisco, CA, USA;
2. Department of Health Policy, Planning, and Administration, Institute of Social Medicine, State University of Rio de Janeiro, Rio de Janeiro, Brazil;
3. Instituto Nacional de Infectologia Evandro Chagas-Fiocruz, Rio de Janeiro, Brazil;
4. Faculdade de Ciências Médicas da Santa Casa de São Paulo, São Paulo, Brazil