@article{ref1,
title="Physiology of healing of fractures. The mistakes preventing it, especially extension therapy",
journal="Deutsche Medizinische Wochenschrift",
year="1952",
author="Schaefer, V.",
volume="77",
number="25",
pages="808-811",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0012-0472",
doi="",
url="http://dx.doi.org/"
}