TY  - RPRT
TI  - Randomised controlled trials in general practice. Are preferable to observational studies.
AU  - T Fahey
PY  - 1996
DO  - 10.1136/bmj.312.7033.779
UR  - https://pubmed.ncbi.nlm.nih.gov/8605488/
ID  - 8605488
ER  -