@article{ref1,
title="Leisure: a problem for preventive psychiatry",
journal="American journal of psychiatry",
year="1971",
author="Mendel, W. M.",
volume="127",
number="12",
pages="1688-1691",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-953X",
doi="",
url="http://dx.doi.org/"
}