@article{ref1,
title="Adolescent suicide: epidemiological and biological aspects",
journal="Adolescent psychiatry",
year="1978",
author="Petzel, S. V. and Cline, D. W.",
volume="6",
number="",
pages="239-266",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0065-2008",
doi="",
url="http://dx.doi.org/"
}