@article{ref1,
title="Difficulties in the diagnosis of acute head injuries",
journal="Bratislavské lekárske listy",
year="1973",
author="Nádvorník, P. and Mezenský, P.",
volume="59",
number="5",
pages="589-592",
abstract="<p>[Abstract unavailable]</p><p>Language: sk</p>",
language="sk",
issn="0006-9248",
doi="",
url="http://dx.doi.org/"
}