@article{ref1,
title="Mortality of hospitalized patients with internal diseases in relation to age and morbidity",
journal="Lebensversicherungs Medizin",
year="1970",
author="Südhof, H. and Muller, Christopher and Reinke, H. and Stohlmann, H.",
volume="22",
number="6",
pages="133-135",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0024-0044",
doi="",
url="http://dx.doi.org/"
}