TY  - RPRT
TI  - Logistic regression analysis and efficient design for two-stage studies.
AU  - K C Cain
AU  - N E Breslow
PY  - 1988
DO  - 10.1093/oxfordjournals.aje.a115074
UR  - https://pubmed.ncbi.nlm.nih.gov/3195561/
ID  - 3195561
ER  -