TY  - RPRT
TI  - Causation and causal inference in epidemiology.
AU  - Kenneth J Rothman
AU  - Sander Greenland
PY  - 2005
DO  - 10.2105/ajph.2004.059204
UR  - https://pubmed.ncbi.nlm.nih.gov/16030331/
ID  - 16030331
ER  -