TY  - RPRT
TI  - How to ... do a randomized controlled trial.
AU  - K D O'Brien
AU  - J L Wright
AU  - N A Mandall
PY  - 2003
DO  - 10.1093/ortho/30.4.337
UR  - https://pubmed.ncbi.nlm.nih.gov/14634173/
ID  - 14634173
ER  -