Blood Conservation during Open Heart Surgery: A Literature Review Roger A. Vertrees, Richard M. Engelman, Joe W. Johnson, Jackson Auvil, Robert H. Breyer and John A. Rousou J Extra Corpor Technol, 18 4 (1986) 200-209 Published online: 29 August 2023 DOI: 10.1051/ject/1986184200