@article{ref1,
title="A classification for traumatic injuries to primary and permanent teeth",
journal="Journal of pedodontics",
year="1981",
author="García-Godoy, F.",
volume="5",
number="4",
pages="295-297",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0145-5508",
doi="",
url="http://dx.doi.org/"
}