@article{ref1,
title="Traumatic injuries to children's teeth",
journal="New York state dental journal",
year="1947",
author="Lieban, E. A.",
volume="13",
number="6",
pages="319-334",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-7571",
doi="",
url="http://dx.doi.org/"
}