@article{ref1,
title="Safety and quality concerns related to the use of herbal therapies",
journal="Minnesota medicine",
year="1999",
author="Chaffin, J. A.",
volume="82",
number="5",
pages="45-48",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-556X",
doi="",
url="http://dx.doi.org/"
}