@article{ref1,
title="Quality of imported herbal products",
journal="Medical journal of Australia",
year="1989",
author="Tay, S. A. and Johnston, M. A.",
volume="151",
number="1",
pages="52-52",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}