TY  - RPRT
TI  - Confounding and effect-modification. 1974.
AU  - O Miettinen
PY  - 1995
DO  - 10.1093/oxfordjournals.aje.a117384
UR  - https://pubmed.ncbi.nlm.nih.gov/7771449/
ID  - 7771449
ER  -