1. Department of Health Policy and Management, UCLA Fielding School of Public Health, Los Angeles, CA, USA
2. Department of Community Health Sciences, UCLA Fielding School of Public Health, Los Angeles, CA, USA
3. Fundação Oswaldo Cruz, Instituto René Rachou. Belo Horizonte, MG, Brasil
4. Programa de Pós Graduação Em Saúde Pública, Universidade Federal de Minas Gerais Belo Horizonte, MG, Brasil