Endocardial cushion defect NOS | Endocardial cushion defect, unspecified type | Endocardial cushion defects | Other endocardial cushion defects | Atrioventricular canal | Atrioventricular septal defect | Endocardial Cushion Defects | Cushion Defect, Endocardial | Cushion Defects, Endocardial | Defect, Endocardial Cushion | Defects, Endocardial Cushion | Endocardial Cushion Defect | Persistent Common Atrioventricular Canal |