@article{ref1,
title="A statistical analysis of 338 cases of the maxillo-facial bone fracture",
journal="Nippon Koku Geka Gakkai Zasshi",
year="1972",
author="Noma, H. and Kawachi, H. and Fuma, Y. and Takeyasu, K. and Tooi, M.",
volume="18",
number="4",
pages="450-455",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0021-5163",
doi="",
url="http://dx.doi.org/"
}