@article{ref1,
title="Pharmaceutical impurities: analytical, toxicological and regulatory perspectives",
journal="Advanced drug delivery reviews",
year="2007",
author="Basak, Arup K. and Raw, Andre S. and Yu, Lawrence X.",
volume="59",
number="1",
pages="1-2",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0169-409X",
doi="10.1016/j.addr.2006.10.004",
url="http://dx.doi.org/10.1016/j.addr.2006.10.004"
}