@article{ref1,
title="Dangerous habits",
journal="Lancet",
year="1998",
author="",
volume="352",
number="9140",
pages="1565-1565",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0140-6736",
doi="",
url="http://dx.doi.org/"
}