@article{ref1,
title="Diagnostic difficulties in abdominal injuries",
journal="Wiadomosci Lekarskie",
year="1969",
author="Jankau, O. and Ruszel, A. and Lukaszewski, H.",
volume="22",
number="23",
pages="2117-2122",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0043-5147",
doi="",
url="http://dx.doi.org/"
}