@article{ref1,
title="Tai-Chi Chuan",
journal="Archives of physical medicine and rehabilitation",
year="1998",
author="Kirsteins, A.",
volume="79",
number="4",
pages="471-471",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9993",
doi="",
url="http://dx.doi.org/"
}