1 Jill S. Dolinsky, Ambry Genetics, Aliso Viejo, CA; Kathleen S. Hruska, GeneDx, Gaithersburg, MD; Tina Pesaran and Marcy E. Richardson, Ambry Genetics, Aliso Viejo, CA; Rachel T. Klein and Benjamin D. Solomon, GeneDx, Gaithersburg, MD; and Chia-Ling Gau, Ambry Genetics, Aliso Viejo, CA.