@article{ref1,
title="Physical exercise and depression",
journal="Mount Sinai journal of medicine",
year="2009",
author="aan het Rot, Marije and Collins, Katherine A. and Fitterling, Heidi L.",
volume="76",
number="2",
pages="204-214",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0027-2507",
doi="10.1002/msj.20094",
url="http://dx.doi.org/10.1002/msj.20094"
}