TY  - RPRT
TI  - Absent aortic valve: a complex anomaly.
AU  - A E Lin
AU  - A J Chin
PY  - 1990
DO  - 10.1007/bf02238366
UR  - https://pubmed.ncbi.nlm.nih.gov/2274446/
ID  - 2274446
ER  -