@article{ref1,
title="Fracture of the patella. A clinical study of 707 patellar fractures",
journal="Annales Chirurgiae et Gynaecologiae Fenniae Supplementum.",
year="1971",
author="Nummi, J.",
volume="179",
number="",
pages="1-85",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0066-2038",
doi="",
url="http://dx.doi.org/"
}