@article{ref1,
title="Varenicline for tobacco dependence",
journal="New England journal of medicine",
year="2009",
author="Geraets, Douglas and Cantrell, Matthew A.",
volume="360",
number="7",
pages="730-731",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJMc082464",
url="http://dx.doi.org/10.1056/NEJMc082464"
}