@article{ref1,
title="NP perspectives on an American tragedy",
journal="Nurse practitioner",
year="1999",
author="Pearson, L.",
volume="24",
number="7",
pages="11-12",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0361-1817",
doi="",
url="http://dx.doi.org/"
}