@article{ref1,
title="Falls as childhood accidents: an increasing urban risk",
journal="Pediatrics",
year="1971",
author="Sieben, R. L. and Leavitt, J. D. and French, J. H.",
volume="47",
number="5",
pages="886-892",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0031-4005",
doi="",
url="http://dx.doi.org/"
}