TY  - RPRT
TI  - Cusp separation in aortic stenosis.
AU  - K E Hammermeister
PY  - 1978
DO  - 10.1016/0002-9149(78)90037-1
UR  - https://pubmed.ncbi.nlm.nih.gov/626144/
ID  - 626144
ER  -