TY  - RPRT
TI  - Fentanyl, sufentanil, alfentanil and myocardial function.
AU  - M Finn
AU  - J Richardson
PY  - 1989
DO  - 10.1007/bf03011459
UR  - https://pubmed.ncbi.nlm.nih.gov/2565169/
ID  - 2565169
ER  -