@article{ref1,
title="The dentist and recreation--bicycling",
journal="Dental economics",
year="1970",
author="Galen, R. W.",
volume="60",
number="12",
pages="24-28",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0011-8583",
doi="",
url="http://dx.doi.org/"
}