1 Department of International Health and Sustainable Development, Tulane University School of Public Health and Tropical Medicine, 1440 Canal Street, New Orleans, LA 70112 United States of America.
2 Department of Epidemiology and Public Health, University College London Institute of Health Equity, London, England.
3 National School of Public Health of Spain, Madrid, Spain.
4 World Social Forum on Health and Social Security, Porto Alegre, Brazil.
5 Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.