TY  - RPRT
TI  - Complex sampling designs and statistical issues in secondary analysis.
AU  - Shawn M Kneipp
AU  - Hossein N Yarandi
PY  - 2002
DO  - 10.1177/019394502400446414
UR  - https://pubmed.ncbi.nlm.nih.gov/12148835/
ID  - 12148835
ER  -