@article{ref1,
title="Foreign body inhalation: a danger of metered dose inhalers",
journal="British journal of general practice",
year="1990",
author="Cohen, D. L.",
volume="40",
number="330",
pages="43-43",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0960-1643",
doi="",
url="http://dx.doi.org/"
}