@article{ref1,
title="Collaboration in a project of prevention. The risk of falling in the elderly",
journal="Krankenpflege. Soins Infirmiers",
year="1997",
author="Pipa, P.",
volume="90",
number="9",
pages="74-78",
abstract="<p>[Abstract unavailable]</p><p>Language: it</p>",
language="it",
issn="0253-0465",
doi="",
url="http://dx.doi.org/"
}