TY  - RPRT
TI  - A SAS macro for sample size re-estimation.
AU  - D Zellner
AU  - G E Zellner
AU  - F Keller
PY  - 2001
DO  - 10.1016/s0169-2607(00)00119-x
UR  - https://pubmed.ncbi.nlm.nih.gov/11339980/
ID  - 11339980
ER  -