TY  - BOOK
AU  - Hayes Richard J
AU  - Moulton Lawrence H
TI  - Cluster randomised trials
SN  - 978-1-58488-816-1
U1  - 000SB:615.5 
PY  - 2009///
CY  - Boca Raton
PB  - CRC
KW  - Clinical trials
KW  - Cluster analysis
KW  - Randomized controlled trials as topic-methods
KW  - Statistical data interpretation
ER  -