@article{ref1,
title="Mortality within a sample of an adult population in Cracow followed-up for 5 years",
journal="Bulletin de Physio-Pathologie Respiratoire (Nancy)",
year="1974",
author="Sawicki, F. and Twardowska, L.",
volume="10",
number="5",
pages="681-697",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0007-439X",
doi="",
url="http://dx.doi.org/"
}