1. Department of Obstetrics and Gynecology; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California
2. Department of Pathology and Laboratory Medicine, UCLA Clinical Genomics Center; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California
3. Department of Psychiatry, Prenatal Diagnosis Center; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California
4. Department of Pediatrics; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California
5. Department of Human Genetics; David Geffen School of Medicine, University of California Los Angeles; Los Angeles California