@article{doi:10.1001/jama.2012.5998,
author = {McMahon T},
title = {ENvoi},
journal = {JAMA},
volume = {308},
number = {9},
pages = {845},
year = {2012},
doi = {10.1001/jama.2012.5998},
URL = { + http://dx.doi.org/10.1001/jama.2012.5998},
eprint = {/data/Journals/JAMA/24832/jpm120018_845_845.pdf}
}