@article{ref1,
title="Models of the opiate system in self-injurious behavior: A reply",
journal="American journal on mental retardation",
year="1991",
author="DeMet, Edward M. and Sandman, Curt A.",
volume="95",
number="6",
pages="694-696",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0895-8017",
doi="",
url="http://dx.doi.org/"
}