TY  - RPRT
TI  - Data, design, and background knowledge in etiologic inference.
AU  - J M Robins
PY  - 2001
DO  - 10.1097/00001648-200105000-00011
UR  - https://pubmed.ncbi.nlm.nih.gov/11338312/
ID  - 11338312
ER  -