@article{ref1,
title="The practical recognition of depressive and suicidal states",
journal="Annals of internal medicine",
year="1966",
author="Ross, Michael",
volume="64",
number="5",
pages="1079-1086",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}