1. Michael & Susan Dell Center for Healthy Living, University of Texas Health Science Center at Houston, School of Public Health in Austin, Austin, Texas
2. Department of Epidemiology, Human Genetics, and Environmental Sciences, University of Texas Health Science Center at Houston, School of Public Health in Austin, Austin, Texas
3. Department of Biostatistics, University of Texas Health Science Center at Houston, School of Public Health in Austin, Austin, Texas
4. Maternal and Child Health Epidemiology, Community Health Improvement Division, Texas Department of State Health Services, Austin, Texas