TY  - RPRT
TI  - Polyurethane heart valves: fatigue failure, calcification, and polyurethane structure.
AU  - G M Bernacca
AU  - T G Mackay
AU  - R Wilkinson
AU  - D J Wheatley
PY  - 1997
DO  - 10.1002/(sici)1097-4636(19970305)34:3<371::aid-jbm12>3.0.co;2-j
UR  - https://pubmed.ncbi.nlm.nih.gov/9086407/
ID  - 9086407
ER  -