Current Concepts in Prenatal Genetics
Department of Obstetrics and Gynecology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania
Correspondence: Michael T. Mennuti, MD, Department of Obstetrics and Gynecology, The Hospital of the University of Pennsylvania, Dulles Building, 5th Floor, 3400 Spruce Street, Philadelphia, PA 19104. E-mail: [email protected]