@article{ref1,
title="On the causal relationship between trauma and osteosarcoma",
journal="Zeitschrift fur die Gesamte Innere Medizin und Ihre Grenzgebiete",
year="1963",
author="Jantschew, W. G. and Kolew, P. and Jordanow, E. and Natschew, T. and Ptaschinikowa, D.",
volume="18",
number="",
pages="308-316",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0044-2542",
doi="",
url="http://dx.doi.org/"
}