@article{ref1,
title="Admission histories, patterns, and subgroups of the heavy users of a state psychiatric hospital",
journal="Psychiatric quarterly",
year="1990",
author="Casper, Edward S. and Pastva, Gary",
volume="61",
number="2",
pages="121-134",
abstract="<p>[Abstract unavailable]</p>",
language="en",
issn="0033-2720",
doi="10.1007/BF01064912",
url="http://dx.doi.org/10.1007/BF01064912"
}