@article{ref1,
title="Screening programme evaluation applied to airport security",
journal="British medical journal: BMJ",
year="2007",
author="Linos, Elizabeth and Linos, Elizabeth and Colditz, Graham",
volume="335",
number="7633",
pages="1290-1292",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0959-8138",
doi="10.1136/bmj.39419.662998.BE",
url="http://dx.doi.org/10.1136/bmj.39419.662998.BE"
}