@article{ref1,
title="Mortality associated with ulcerative colitis",
journal="Medical journal of Australia",
year="1972",
author="Hughes, E. S.",
volume="2",
number="18",
pages="1009-1010",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-729X",
doi="",
url="http://dx.doi.org/"
}