TY  - RPRT
TI  - Power and sample size.
AU  - J W Hogan
AU  - J F Peipert
PY  - 1998
DO  - 10.1097/00003081-199806000-00006
UR  - https://pubmed.ncbi.nlm.nih.gov/9646958/
ID  - 9646958
ER  -