title: Early diagnostic procedures and antepartum monitoring.
authors.affiliation: Hospital of the University of Pennsylvania, Philadelphia.
authors.forename: J
authors.initials: J
authors.lastname: Ludmir
authors.forename: P
authors.initials: P
authors.lastname: Samuels
mesh_terms: D015193:Chorionic Villi Sampling; D004314:Down Syndrome / Q000175:diagnosis; D005260:Female; D005315:Fetal Diseases / Q000175:diagnosis; D005323:Fetal Monitoring; D006801:Humans; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D011296:Prenatal Diagnosis; D016216:Ultrasonography, Prenatal