@article{ref1,
title="Ibuprofen blood levels vary",
journal="Annals of emergency medicine",
year="1988",
author="Harchelroad, F. and Evans, T. C. and Hobbs, E.",
volume="17",
number="2",
pages="186-186",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}