@article{doi:10.1001/archinternmed.2011.350, author = {Cheung PT and Wiler JL and Ginde AA}, title = {CHanges in barriers to primary care and emergency department utilization}, journal = {Archives of Internal Medicine}, volume = {171}, number = {15}, pages = {1393-1400}, year = {2011}, doi = {10.1001/archinternmed.2011.350}, URL = { + http://dx.doi.org/10.1001/archinternmed.2011.350}, eprint = {/data/Journals/INTEMED/22524/ilt0808_1397_1399.pdf} }