@article{ref1,
title="Some epidemiological aspects of swimming",
journal="Journal of sports traumatology and related research",
year="1990",
author="Gambaretti, R and Berlusconi, M",
volume="12",
number="3",
pages="169-181",
abstract="<p>[Abstract unavailable]  Keywords: Drowning; Drowning Prevention; Water Safety </p>",
language="",
issn="1120-3137",
doi="",
url="http://dx.doi.org/"
}