TY  - RPRT
TI  - Beating heart surgery: does it make a difference?
AU  - Michael J Mack
PY  - 2003
DO  - 10.1111/j.1541-9215.2004.02107.x
UR  - https://pubmed.ncbi.nlm.nih.gov/15815135/
ID  - 15815135
ER  -