@article{ref1,
title="Principles of ethics and code of professional conduct. With official advisory opinions revised to January 2005",
journal="Hawaii dental journal",
year="2007",
author="",
volume="38",
number="1",
pages="9-16",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0891-9933",
doi="",
url="http://dx.doi.org/"
}