TY  - RPRT
TI  - Randomised controlled trials in primary care: scope and application.
AU  - Aziz Sheikh
AU  - Liam Smeeth
AU  - Richard Ashcroft
PY  - 2002
UR  - https://pubmed.ncbi.nlm.nih.gov/12236280/
ID  - 12236280
ER  -