@article{ref1,
title="Traumatic injuries to the primary and young permanent dentitions",
journal="University of Toronto dental journal",
year="1990",
author="Spinosa, G. M.",
volume="3",
number="2",
pages="34-36",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0843-5812",
doi="",
url="http://dx.doi.org/"
}