@article{doi:10.1001/archinternmed.2011.217, author = {Becker WC and Tobin DG and Fiellin DA}, title = {Nonmedical use of opioid analgesics obtained directly from physicians: Prevalence and correlates}, journal = {Archives of Internal Medicine}, volume = {171}, number = {11}, pages = {1034-1036}, year = {2011}, doi = {10.1001/archinternmed.2011.217}, URL = { + http://dx.doi.org/10.1001/archinternmed.2011.217}, eprint = {/data/Journals/INTEMED/5819/ilt0613_1034_1036.pdf} }