@article{ref1,
title="Patient suicide: suicidal behavior is often not recognized",
journal="Krankenpflege. Soins Infirmiers",
year="1991",
author="Haas, U.",
volume="84",
number="2",
pages="60-65",
abstract="<p>[Abstract unavailable]</p> <p>Language: de</p>",
language="de",
issn="0253-0465",
doi="",
url="http://dx.doi.org/"
}