TY  - RPRT
TI  - The proof for prevention: beyond observations.
AU  - Patrick G O'Malley
AU  - Philip Greenland
PY  - 2006
DO  - 10.1001/archinte.166.5.486
UR  - https://pubmed.ncbi.nlm.nih.gov/16534032/
ID  - 16534032
ER  -