TY  - RPRT
TI  - Systematic reviews and meta-analysis.
AU  - G Lewis
AU  - R Churchill
AU  - M Hotopp
PY  - 1997
DO  - 10.1017/s0033291796004291
UR  - https://pubmed.ncbi.nlm.nih.gov/9122306/
ID  - 9122306
ER  -