1. Center for Environmental Research and Children’s Health (CERCH), School of Public Health, University of California at Berkeley, Berkeley, California 94720, United States
2. Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, Quebec H3A 1A2,Canada
3. Department of Urology, University of Pretoria, Pretoria 0028, South Africa
4. University of Pretoria Institute for Sustainable Malaria Control and School of Health Systems and Public Health, University of Pretoria, Pretoria 0028, South Africa