@article{ref1,
title="Reaffirmed cost-effectiveness of poison centers",
journal="Annals of emergency medicine",
year="2003",
author="Darwin, Josephine and Seger, D.",
volume="41",
number="1",
pages="159-160",
abstract="Abstract unavailable.",
language="",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}