TY  - RPRT
TI  - Ecological versus case-control studies for testing a linear-no threshold dose-response relationship.
AU  - B L Cohen
PY  - 1990
DO  - 10.1093/ije/19.3.680
UR  - https://pubmed.ncbi.nlm.nih.gov/2262264/
ID  - 2262264
ER  -