TY  - RPRT
TI  - Sample size calculations for controlled clinical trials using generalized estimating equations (GEE).
AU  - G Dahmen
AU  - J Rochon
AU  - I R König
AU  - A Ziegler
PY  - 2004
UR  - https://pubmed.ncbi.nlm.nih.gov/15702199/
ID  - 15702199
ER  -