TY  - BOOK
AU  - Hayes, Richard J
AU  - Moulton Lawrence H
TI  - Cluster randomised trials
SN  - 9781584888161
U1  - 362.1/HAY 
PY  - 2009///
CY  - London
PB  - CRC Pr
KW  - Data interpretation, Statistical
KW  - Randomized Controlled Trials as Topic-methods
KW  - Cluster analysis
KW  - Clinical trials
KW  - Social problems, welfare and services
ER  -