TY  - RPRT
TI  - Detecting effect modification due to the variables controlled in multiple matching.
AU  - A Ejigou
AU  - R McHugh
PY  - 1985
DO  - 10.1016/0021-9681(85)90117-1
UR  - https://pubmed.ncbi.nlm.nih.gov/4031001/
ID  - 4031001
ER  -