@misc{indiciae7c242890ec14, title = {Why do we need randomised controlled trials to assess behavioural interventions?}, author = {J Stephenson and J Imrie}, year = {1998}, doi = {10.1136/bmj.316.7131.611}, url = {https://pubmed.ncbi.nlm.nih.gov/9518919/}, note = {Source identifier: 9518919} }