@article{ref1,
title="The epidemiology of missing records",
journal="JAMA journal of the American Medical Association",
year="1988",
author="Aung, K. H. and Sniezek, Joseph E. and Sacks, Jeffrey J.",
volume="259",
number="5",
pages="685-685",
abstract="Abstract unavailable",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}