Affiliation: | 1. Cytogenetics Laboratory, Laboratory Corporation of America® Holdings, Research Triangle Park, NC, 27709 USA;2. Integrated Genetics, LabCorp Specialty Testing Group, 655 Huntington Drive, Monrovia, CA, 91016 USA;3. David Geffen School of Medicine, UCLA, Los Angeles, CA, USA Center for Fetal Medicine and Women's Ultrasound, Los Angeles, CA, USA |