AU  - O’Malley PG
TI  - IN support of more clustered randomized trials
PT  - JOUR
DP  - 2013
TA  - JAMA Internal Medicine
pages = {315},
VI  - 173
IP  - 4
AID  - 10.1001/jamainternmed.2013.3665 [doi]
4100  - http://dx.doi.org/10.1001/jamainternmed.2013.3665
SO  - JAMA Internal Medicine February 25, 2013 173(4):315