@article{doi:,
title = {PAtient visits* to physician offices and outpatient departments, by payment source—united states, 2009},
journal = {JAMA},
volume = {307},
number = {2},
pages = {141},
year = {2012},
doi = {},
URL = { + http://dx.doi.org/},
eprint = {/data/Journals/JAMA/22485/jwr0111_141a_141.pdf}
}