@article{ref1,
title="[The duty to render assistance]",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1991",
author="Hengeveld, M. W. and Engberts, D. P.",
volume="135",
number="10",
pages="e439-e439",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}