TY  - RPRT
TI  - Using case-control studies for prescribing research.
AU  - J Mant
AU  - M Vessey
PY  - 2002
DO  - 10.1046/j.1365-2710.2002.00398.x
UR  - https://pubmed.ncbi.nlm.nih.gov/11846863/
ID  - 11846863
ER  -