TY  - RPRT
TI  - Re: "Exposure opportunity in case-control studies".
AU  - S J Kuritz
AU  - J R Landis
PY  - 1987
DO  - 10.1093/oxfordjournals.aje.a114629
UR  - https://pubmed.ncbi.nlm.nih.gov/3578250/
ID  - 3578250
ER  -