@article{ref1,
title="Depression: illness, social disease, or natural state?",
journal="Lancet",
year="1972",
author="Sandison, R. A.",
volume="1",
number="7762",
pages="1227-1229",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}