TY  - RPRT
TI  - A comparison of multivariable mathematical methods for predicting survival--II. Statistical selection of prognostic variables.
AU  - S D Walter
AU  - A R Feinstein
AU  - C K Wells
PY  - 1990
DO  - 10.1016/0895-4356(90)90121-5
UR  - https://pubmed.ncbi.nlm.nih.gov/2324776/
ID  - 2324776
ER  -