TY  - RPRT
TI  - Practical considerations for approximating relative risk by the standardized mortality ratio.
AU  - M J Symons
AU  - J D Taulbee
PY  - 1981
DO  - 10.1097/00043764-198106000-00013
UR  - https://pubmed.ncbi.nlm.nih.gov/7248032/
ID  - 7248032
ER  -