Spontaneous reduction in size of ventricular septal defect due to accessory tissue of atrioventricular valve
spontaneous reduction in size of ventricular septal defect due to accessory tissue of atrioventricular valve
Spontaneous reduction in size of ventricular septal defect due to accessory tissue of atrioventricular valve
spontaneous reduction in size of ventricular septal defect due to accessory tissue of atrioventricular valve