TY  - RPRT
TI  - Selecting controls for assessing interaction in nested case-control studies.
AU  - John Cologne
AU  - Bryan Langholz
PY  - 2003
DO  - 10.2188/jea.13.193
UR  - https://pubmed.ncbi.nlm.nih.gov/12934962/
ID  - 12934962
ER  -