TY  - RPRT
TI  - Risk stratification for open heart surgery.
AU  - K M Taylor
AU  - P K Walton
PY  - 1992
DO  - 10.1136/bmj.305.6867.1500-b
UR  - https://pubmed.ncbi.nlm.nih.gov/1493412/
ID  - 1493412
ER  -