@article{ref1,
title="Foreign bodies in the air and food passages",
journal="Postgraduate medicine",
year="1956",
author="Holinger, P. H. and Johnston, K. C.",
volume="20",
number="6",
pages="619-624",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0032-5481",
doi="",
url="http://dx.doi.org/"
}