References
- Roberts WC, Perry LW, Chandra RS, Myers GE, Shapiro SR, Scott LP. Aortic valve atresia: a new classification based on necropsy study of 73 cases. Am J Cardiol 1976;37 (5):753–756.
- Perry LW, Scott LP III, Shapiro SR, Chandra RS, Roberts WC. Atresia of the aortic valve with ventricular septal defect: a clinicopathologic study of four newborns. Chest 1977;72 (6):757–761.