@article{ref1,
title="Swallowed foreign articles in children",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1991",
author="Bax, N. M. and Hofstee, A. W.",
volume="135",
number="6",
pages="209-211",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}