Mai, Cara T.; Cassell, Cynthia H.; Meyer, Robert E.; Isenburg, Jennifer; Canfield, Mark A.; Rickard, Russel; Olney, Richard S.; Stallings, Erin B.; Beck, Meredith; Hashmi, S. Shahrukh; Cho, Sook Ja; Kirby, Russell S.; for the National Birth Defects Prevention Network; Kirby, Russell; Browne, Marilyn