TY  - RPRT
TI  - Efficiency loss from categorizing quantitative exposures into qualitative exposures in case-control studies.
AU  - L P Zhao
AU  - L N Kolonel
PY  - 1992
DO  - 10.1093/oxfordjournals.aje.a116520
UR  - https://pubmed.ncbi.nlm.nih.gov/1415166/
ID  - 1415166
ER  -