1. Division of Clinical Pharmacology and Toxicology, Department of Medicine, University of Colorado Health Sciences Center, Denver, Colorado, USA
2. Department of Veterans Affairs, New Jersey Health Care System, East Orange, New Jersey, USA
3. CINVESTAV-IPN (Centro de Investigaciones y de Estudios Avanzados-Instituto Politécnico Nacional), Merida, Yucatan, Mexico
4. National Institute of Public Health, Cuernavaca, Morelos, Mexico
5. Public Health Institute, Occupational Lead Poisoning Prevention Program, Richmond, California, USA
6. California Department of Health Services, Occupational Health Branch, Richmond, California, USA
7. Departments of Environmental Health Sciences and Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
8. Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, USA
9. Department of Environmental Health Sciences, University of Michigan School of Public Health, Ann Arbor, Michigan, USA
10. Program in Environmental Health, Division of General Pediatrics, Children’s Hospital, Boston, Massachusetts, USA