@article{ref1,
title="Continued impairment in persons at risk for bipolar affective disorder: results of a 19-month follow-up study",
journal="Journal of abnormal psychology",
year="1984",
author="Klein, D. N. and Depue, R. A.",
volume="93",
number="3",
pages="345-347",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0021-843X",
doi="",
url="http://dx.doi.org/"
}