@article{doi:10.1001/jama.2012.270,
author = {Liu H and Waxman DA and Main R and Mattke S},
title = {UTilization of anesthesia services during outpatient endoscopies and colonoscopies and associated spending in 2003-2009},
journal = {JAMA},
volume = {307},
number = {11},
pages = {1178-1184},
year = {2012},
doi = {10.1001/jama.2012.270},
URL = { + http://dx.doi.org/10.1001/jama.2012.270},
eprint = {/data/Journals/JAMA/22494/joc25018_1178_1184.pdf}
}