@article{ref1,
title="Prevalence and quality of endodontic treatment in an urban adult population in Norway",
journal="Endodontics and dental traumatology",
year="1988",
author="Eriksen, H. M. and Bjertness, Espen and Orstavik, D.",
volume="4",
number="3",
pages="122-126",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0109-2502",
doi="",
url="http://dx.doi.org/"
}