@article{doi:10.1001/jama.2012.4230,
author = {Dickersin K and Rennie D},
title = {THe evolution of trial registries and their use to assess the clinical trial enterprise},
journal = {JAMA},
volume = {307},
number = {17},
pages = {1861-1864},
year = {2012},
doi = {10.1001/jama.2012.4230},
URL = { + http://dx.doi.org/10.1001/jama.2012.4230},
eprint = {/data/Journals/JAMA/23360/jed120017_1861_1864.pdf}
}