TY  - RPRT
TI  - Selecting patients for randomized trials: a systematic approach based on risk group.
AU  - Andrew J Vickers
AU  - Barry S Kramer
AU  - Stuart G Baker
PY  - 2006
DO  - 10.1186/1745-6215-7-30
UR  - https://pubmed.ncbi.nlm.nih.gov/17022818/
ID  - 17022818
ER  -