TY  - RPRT
TI  - Control selection with incomplete case ascertainment.
AU  - D A Savitz
AU  - N Pearce
PY  - 1988
DO  - 10.1093/oxfordjournals.aje.a114905
UR  - https://pubmed.ncbi.nlm.nih.gov/3285666/
ID  - 3285666
ER  -