TY  - RPRT
TI  - Improving the efficiency of nested case-control studies of interaction by selecting controls using counter matching on exposure.
AU  - John B Cologne
AU  - Gerald B Sharp
AU  - Kazuo Neriishi
AU  - Pia K Verkasalo
AU  - Charles E Land
AU  - Kei Nakachi
PY  - 2004
DO  - 10.1093/ije/dyh097
UR  - https://pubmed.ncbi.nlm.nih.gov/15105408/
ID  - 15105408
ER  -