1. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Fetal Diagnostic Unit, St. Luke's Hospital of Kansas City, Kansas City, Missouri; Maternal Fetal Medicine, St. Luke's Hospital of Kansas City, 4400 Wornall Road, Kansas City, MO 64111.
2. Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine, Fetal Diagnostic Unit, St. Luke's Hospital of Kansas City, Kansas City, Missouri.