TY  - RPRT
TI  - The narrow aortic annulus. A technique for inserting a larger prosthesis.
AU  - R H Kinsley
PY  - 1977
DO  - 10.1016/s0002-8703(77)80072-0
UR  - https://pubmed.ncbi.nlm.nih.gov/860678/
ID  - 860678
ER  -