@article{ref1,
title="Epidemiology of multiple injuries",
journal="Chirurgia Narzadow Ruchu i Ortopedia Polska",
year="1979",
author="Mazurkiewicz, H. and Gusta, A. and Krzykawski, R. and Margula, P.",
volume="44",
number="4",
pages="325-330",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0009-479X",
doi="",
url="http://dx.doi.org/"
}