@article{ref1,
title="Taking a closer look at 2003 ICD-9-CM, DRG changes",
journal="Journal of AHIMA / American Health Information Management Association",
year="2002",
author="Zeisset, Ann",
volume="73",
number="10",
pages="68-72",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1060-5487",
doi="",
url="http://dx.doi.org/"
}