@article{ref1,
title="An initial investigation of the psychedelic drug flashback phenomena",
journal="Journal of consulting and clinical psychology",
year="1974",
author="Matefy, R. E. and Krall, R. G.",
volume="42",
number="6",
pages="854-860",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-006X",
doi="",
url="http://dx.doi.org/"
}