@article{ref1,
title="Long-term psychological effects of LSD",
journal="Psychological bulletin",
year="1973",
author="McWilliams, S. A. and Tuttle, R. J.",
volume="79",
number="6",
pages="341-351",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-2909",
doi="",
url="http://dx.doi.org/"
}