1. Division of Maternal-Fetal Medicine; Department of Obstetrics and Gynecology; David Geffen School of Medicine at UCLA; Los Angeles CA USA
2. Fetal Diagnostic Centers; Pasadena, Tarzana, and Lancaster CA USA
3. Division of Pediatric Cardiology; Department of Pediatrics; UCLA Mattel Children's Hospital; David Geffen School of Medicine at UCLA; Los Angeles CA USA