TY  - RPRT
TI  - Sample size calculations when outcomes will be compared with an historical control.
AU  - F K Hoehler
PY  - 1999
DO  - 10.1016/s0010-4825(99)00002-5
UR  - https://pubmed.ncbi.nlm.nih.gov/10355735/
ID  - 10355735
ER  -