@article{ref1,
title="Recovery of morphine from biological samples by hydrolysis and solvent extraction",
journal="Journal of forensic sciences",
year="1978",
author="Predmore, D. B. and Christian, G. D. and Loomis, T. A.",
volume="23",
number="3",
pages="481-489",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1198",
doi="",
url="http://dx.doi.org/"
}