Fetal echocardiography review : a Q&A review for the ARDMS examination / Nikki C. Stahl, RT(R)(M)(CT), RDMS, RVT, Sonographer in High-Risk Obstetrics and Fetal Echocardiography, PinnacleHealth Maternal Fetal Medicine, Harrisburg, Pennsylvania, Valrie Kunes, BA, AS(R), Sonographer in High-Risk Obstetrics and Fetal Echocardiography, Middleburg, Pennsylvania, Bradley W. Robinson, MD, FACC, Associate Professor of Pediatrics, Sidney Kimmel Medical College at Thomas Jefferson, Nemours Cardiac Center, A.I. Dupont Hospital for Children, Wilmington, Delaware.