@article{ref1,
title="The recognition of drugs of abuse",
journal="Royal Society of Health journal",
year="1974",
author="Turner, T. D.",
volume="94",
number="2",
pages="62-66",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0035-9130",
doi="",
url="http://dx.doi.org/"
}