@article{ref1,
title="Pseudocatatonia associated with abuse of amphetamine and cannabis",
journal="Postgraduate medicine",
year="1977",
author="Warner, A. M. and Pierozynski, G.",
volume="61",
number="1",
pages="275-277",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-5481",
doi="",
url="http://dx.doi.org/"
}