TY  - RPRT
TI  - Survey inference for subpopulations.
AU  - B I Graubard
AU  - E L Korn
PY  - 1996
DO  - 10.1093/oxfordjournals.aje.a008847
UR  - https://pubmed.ncbi.nlm.nih.gov/8659480/
ID  - 8659480
ER  -