TY  - BOOK
AU  - Julious Steven A
TI  - Sample sizes for clinical trials
SN  - 978-1-58488-739-3
U1  - 000SB:615 
PY  - 2009///
CY  - Boca Raton
PB  - CRC Press
KW  - Clinical trials-statistical methods
KW  - Sampling (Statistics)
ER  -