@article{doi:10.1001/jamainternmed.2013.3665,
author = {O’Malley PG},
title = {IN support of more clustered randomized trials},
journal = {JAMA Internal Medicine},
volume = {173},
number = {4},
pages = {315},
year = {2013},
doi = {10.1001/jamainternmed.2013.3665},
URL = { + http://dx.doi.org/10.1001/jamainternmed.2013.3665},
eprint = {/data/Journals/INTEMED/926460/ien120035_315_315.pdf}
}