TY  - RPRT
TI  - Asynchronous leaflet closure in the normally functioning bileaflet mechanical valve.
AU  - R L Donnerstein
AU  - H D Allen
PY  - 1990
DO  - 10.1016/s0002-8703(05)80304-7
UR  - https://pubmed.ncbi.nlm.nih.gov/2309618/
ID  - 2309618
ER  -