1. The normal P-R interval in infants and children;Alimurung, M.M.; Massel, B.F.;Circulation,1956
2. The mitral valve in endocardial cushion defects;Al Omeri, M.; Bishop, M.; Oakley, C.; Bentall, H.H.; Cleland, W.P.;Brit. Heart J,1965
3. The vectorcardiogram and electrocardiogram in persistent common atrioventricular canal;Beregovich, J.; Bleifer, S.; Donoso, S.; Grishman, A.;Circulation,1960
4. L'electrocardiogramme dans la persistance du canal atrioventriculaire;Blondeau, M.; Maurice, P.; Lenegre, J.;Arch. Mal. Cceur,1966
5. The persistent ostium primum atrial septal defect;Circulation,1956