CROMBLEHOLME, TM. Prenatal diagnosis and the pediatric surgeon : the impact of prenatal consultation on perinatal management. J Pediatr Surg. 1996, 31, 156-162
American Academy of Pediatrics. American College of Obstetricians and Gynecologists. Guidlines for Perinatal Care. 2002, 10-11
TEGNANDER, E. Prenatal detection of heart defects at the routine fetal examination at 18 weeks in a non-selected population. Ultrasound Obstet. Gynecol. 1995, 5, 372-380