@article{ref1,
title="Botulinum toxin: from poison to pharmaceutical. The history of a poison that became useful to mankind",
journal="Current problems in dermatology",
year="2002",
author="Kreyden, Oliver P.",
volume="30",
number="",
pages="94-100",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1421-5721",
doi="",
url="http://dx.doi.org/"
}