@article{ref1,
title="Sports, children and accidents. II. Risk factors",
journal="Minerva Pediatrica",
year="1988",
author="Messi, G. and Marchi, A. G. and Gazzola, G. and Renier, S.",
volume="40",
number="3",
pages="157-162",
abstract="<p>[Abstract unavailable]</p><p>Language: it</p>",
language="it",
issn="0026-4946",
doi="",
url="http://dx.doi.org/"
}