@article{ref1,
title="Effects of Cannabis sativa extract on conditioned fear",
journal="Behavioral biology",
year="1972",
author="González, S. C. and Karniol, I. G. and Carlini, E. L.",
volume="7",
number="7",
pages="83-94",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0091-6773",
doi="",
url="http://dx.doi.org/"
}