From the Department of Epidemiology and Biostatistics (Dr Brender, Ms Steck), Texas A&M Health Science Center, School of Rural Public Health, College Station, TX; Epidemiology and Disease Surveillance Unit (Dr Suarez), Texas Department of State Health Services, Austin, TX; Birth Defects Epidemiology and Surveillance Branch (Dr Langlois), Texas Department of State Health Services, Austin, TX; Texas Center for Geographic Information Science (Dr Zhan), Department of Geography, Texas State University, San Marcos, TX; Department of Health Services and Research (Ms Moody), Texas State University, San Marcos, TX; and Infectious Disease Control Unit (Ms Moody), Texas Department of State Health Services, Austin, TX.
Sources of Financial Support: Supported by Centers for Disease Control and Prevention, Cooperative Agreement U50/CCU 613232 and Texas Department of State Health Services Center for Birth Defects Research and Prevention, Contract 7097097093B.
Address correspondence to: Jean D. Brender, PhD, Department of Epidemiology and Biostatistics, Texas A&M Health Science Center School of Rural Public Health, 201 SRPH Administration Building, College Station, TX 77843-1266; E-mail: [email protected].
