@article{ref1,
title="Behavior of the first human-like inhabitants of the earth toward disease and injury",
journal="Medizinische Klinik [Urban und Schwarzenberg]",
year="1968",
author="Hengen, O. P.",
volume="63",
number="37",
pages="1479-1480",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0025-8458",
doi="",
url="http://dx.doi.org/"
}