TY  - RPRT
TI  - A program to calculate sample size, power, and least detectable relative risk using a programmable calculator.
AU  - J M Muhm
AU  - A F Olshan
PY  - 1989
DO  - 10.1093/oxfordjournals.aje.a115110
UR  - https://pubmed.ncbi.nlm.nih.gov/2910062/
ID  - 2910062
ER  -