@article{ref1,
title="Preferred types of physical activity among Rhode Island adults",
journal="Medicine and health, Rhode Island",
year="1997",
author="Hesser, Jana Earl and Kim, H.",
volume="80",
number="9",
pages="307-308",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1086-5462",
doi="",
url="http://dx.doi.org/"
}