@article{ref1,
title="Suicide clues in psychotic patients",
journal="Mental hygiene",
year="1969",
author="Singer, R. G. and Blumenthal, I. J.",
volume="53",
number="3",
pages="346-350",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-9683",
doi="",
url="http://dx.doi.org/"
}