@article{ref1,
title="Ureteral injury owing to external trauma",
journal="Journal of urology",
year="1972",
author="Del Villar, R. G. and Ireland, G. W. and Cass, A. S.",
volume="107",
number="1",
pages="29-30",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-5347",
doi="",
url="http://dx.doi.org/"
}