TY  - RPRT
TI  - Why do we need randomised controlled trials to assess behavioural interventions?
AU  - J Stephenson
AU  - J Imrie
PY  - 1998
DO  - 10.1136/bmj.316.7131.611
UR  - https://pubmed.ncbi.nlm.nih.gov/9518919/
ID  - 9518919
ER  -