@article{ref1,
title="Epidemiological survey of injuries during the 1st under 17 world football championships",
journal="Journal of sports traumatology and related research",
year="1992",
author="Volpi, P",
volume="14",
number="1",
pages="43-49",
abstract="<p>[Abstract unavailable]  Keywords: Soccer; </p>",
language="en",
issn="1120-3137",
doi="",
url="http://dx.doi.org/"
}