1. Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
2. Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
3. Johns Hopkins Center for Excellence in Environmental Public Health Tracking, Baltimore, Maryland, USA
4. Department of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, USA
5. Sección de Toxicología, Cinvestav, México