@article{ref1,
title="Chronic hallucinogenic drug use and thought disturbance",
journal="Archives of general psychiatry",
year="1972",
author="Tucker, G. J. and Quinlan, D. and Harrow, Martin",
volume="27",
number="4",
pages="443-447",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-990X",
doi="",
url="http://dx.doi.org/"
}