@article{ref1,
title="Increase in deaths due to methadone in North Carolina",
journal="JAMA journal of the American Medical Association",
year="2003",
author="Butts, J. and Agyekum, Georgina A. and Gilchrist, Julie and Sanford, Catherine P. and Budnitz, Daniel S. and Ballesteros, Michael F.",
volume="290",
number="1",
pages="40-40",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="10.1001/jama.290.1.40",
url="http://dx.doi.org/10.1001/jama.290.1.40"
}