TY  - RPRT
TI  - Meta-analysis: a perspective for research synthesis.
AU  - M C Smith
AU  - D C Naftel
PY  - 1984
DO  - 10.1111/j.1547-5069.1984.tb01375.x
UR  - https://pubmed.ncbi.nlm.nih.gov/6368368/
ID  - 6368368
ER  -