@article{ref1,
title="Grenade splinter causing biliary obstruction",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1979",
author="Björkenheim, J. M. and Björknäs, H. and Tamminen, E.",
volume="95",
number="18",
pages="1163-1165",
abstract="<p>[Abstract unavailable]</p><p>Language: fi</p>",
language="fi",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}