1. Pulmonary stenosis with normal aortic root;Abrahams;Br Heart J,1951
2. Pulmonary stenosis;Fyler,1992
3. Children with congenital heart disease;Samanek;Pediatr Cardiol,1992
4. Second natural history study of congenital heart defects;Weidman;Circulation,1993
5. Second natural history study of congenital heart defects;Hayes;Circulation,1993