@article{ref1,
title="Depression: adults' most common psychiatric problem",
journal="Pennsylvania medicine",
year="1980",
author="Schwartz, H. J. and Weiss, K. J. and Wolman, T.",
volume="83",
number="12",
pages="20-2, 24",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-4595",
doi="",
url="http://dx.doi.org/"
}