@article{ref1,
title="Marijuana: pro and con",
journal="American journal of nursing",
year="1977",
author="Dell, D. D. and Snyder, J. A.",
volume="77",
number="4",
pages="630-635",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-936X",
doi="",
url="http://dx.doi.org/"
}