TY  - RPRT
TI  - Randomized and nonrandomized clinical studies: statistical considerations.
AU  - S G Baker
AU  - K S Lindeman
PY  - 2000
DO  - 10.1097/00000542-200004000-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/10754608/
ID  - 10754608
ER  -