TY  - RPRT
TI  - Combining qualitative studies with randomised controlled trials is often useful.
AU  - T Weaver
AU  - A Renton
AU  - P Tyrer
AU  - J Ritchie
PY  - 1996
DO  - 10.1136/bmj.313.7057.629
UR  - https://pubmed.ncbi.nlm.nih.gov/8806277/
ID  - 8806277
ER  -