@article{ref1,
title="Initial aggravation of self-injurious behavior in autistic patients receiving naltrexone treatment",
journal="Journal of autism and developmental disorders",
year="1990",
author="Knabe, R. and Schulz, P. and Richard, J.",
volume="20",
number="4",
pages="591-593",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0162-3257",
doi="",
url="http://dx.doi.org/"
}