@article{doi:10.1001/archinternmed.2011.1209,
author = {Estellat C and Ravaud P},
title = {Lack of head-to-head trials and fair control arms: Randomized controlled trials of biologic treatment for rheumatoid arthritis},
journal = {Archives of Internal Medicine},
volume = {172},
number = {3},
pages = {237-244},
year = {2012},
doi = {10.1001/archinternmed.2011.1209},
URL = { + http://dx.doi.org/10.1001/archinternmed.2011.1209},
eprint = {/data/Journals/INTEMED/22608/ioi110010_237_244.pdf}
}