1. Maureen S. Durkin is with the Department of Population Health Sciences of the University of Wisconsin School of Medicine and Public Health and the Waisman Center of the University of Wisconsin–Madison. Matthew J. Maenner, Jon Baio, Deborah Christensen, Laura A. Schieve, Kim Van Naarden Braun, and Marshalyn Yeargin-Allsopp are with the National Center on Birth Defects and Developmental Disabilities, Centers for Disease Control and Prevention, Atlanta, GA. Julie Daniels is with the Department of...