TY  - RPRT
TI  - Ventricular septal defect. Unresolved problems.
AU  - J E Edwards
PY  - 1967
DO  - 10.1016/0002-9149(67)90506-1
UR  - https://pubmed.ncbi.nlm.nih.gov/6027339/
ID  - 6027339
ER  -