@article{ref1,
title="Copperhead bites: update on therapy",
journal="Missouri medicine",
year="1976",
author="Krochmal, L. and Anderson, P. C.",
volume="73",
number="4",
pages="169-72, 178",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0026-6620",
doi="",
url="http://dx.doi.org/"
}