1. Department of Environmental and Occupational Health, School of Public Health, Indiana University, 2719 E 10th St, Bloomington, Indiana47401, United States
2. WE Consult ltd, 177 Rua Tomas Ribeiro, Maputo1102, Mozambique
3. Department of Disease Control, London School of Hygiene and Tropical Medicine, LondonWC1E 7HT, United Kingdom
4. Epidemiology and Public Health Department, Swiss Tropical and Public Health Institute, Kreuzstrasse 2, Allschwil4123, Switzerland
5. Ministério da Saúde, Instituto Nacional de Saúde Maputo, Maputo1102, Mozambique
6. Department of Environmental Sciences and Engineering, Gillings School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina27599, United States