Affiliation: | 1. Department of Pediatrics Department of Radiology, and Department of Obstetrics and Gynecology, Beth Israel Medical Center, New York, N. Y.;2. Department of Pathology Department of Radiology, and Department of Obstetrics and Gynecology, Beth Israel Medical Center, New York, N. Y.;3. Department of Radiology, Mount Sinai School of Medicine, New York, N. Y., U.S.A. |