TY  - RPRT
TI  - Selection bias and the relationship between APACHE II and mortality.
AU  - W A Knaus
AU  - D P Wagner
PY  - 1990
DO  - 10.1097/00003246-199007000-00033
UR  - https://pubmed.ncbi.nlm.nih.gov/2364730/
ID  - 2364730
ER  -