@article{ref1,
title="Why can't we retire codeine?",
journal="Pediatrics",
year="2014",
author="Woolf, Alan D. and Greco, Christine",
volume="133",
number="5",
pages="e1354-5",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0031-4005",
doi="10.1542/peds.2013-4057",
url="http://dx.doi.org/10.1542/peds.2013-4057"
}