@article{ref1,
title="The epidemiology of depression in old age: the importance of physical illness",
journal="Clinical neuropharmacology",
year="1992",
author="Katona, C. L.",
volume="15",
number="Suppl 1 Pt A",
pages="281A-282A",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-5664",
doi="",
url="http://dx.doi.org/"
}