@article{ref1,
title="Special stroller insert",
journal="Physical therapy",
year="1979",
author="Bergen, A. F.",
volume="59",
number="3",
pages="301-302",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-9023",
doi="",
url="http://dx.doi.org/"
}