TY  - RPRT
TI  - Confounded by confounding: separating association from causation.
AU  - H T Davies
AU  - F L Williams
PY  - 1999
DO  - 10.12968/hosp.1999.60.4.1098
UR  - https://pubmed.ncbi.nlm.nih.gov/10396438/
ID  - 10396438
ER  -