@article{ref1,
title="The toddler as a bicycle passenger",
journal="Pediatrics",
year="1972",
author="Berry, T. and Burg, F. D. and Kravitz, H.",
volume="49",
number="3",
pages="443-446",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}