Study of cardiovascular anomalies in fetuses and neonates. Correlation of autopsy findings with fetal or postnatal echocardiography. Establishment of reference values for valve measurements and ventricular wall thicknesses based on 25 year autopsy records at Women and Infants' Hospital.Use of knowledge thus gained in presentations at conferences with medical students, residents, fellows, and attendings in pediatrics, obstetrics, and pediatric cardiology.