@article{ref1,
title="The duty to render aid",
journal="Nederlands Tijdschrift voor Geneeskunde",
year="1991",
author="Leenen, H. J.",
volume="135",
number="3",
pages="103-106",
abstract="<p>[Abstract unavailable]</p><p>Language: nl</p>",
language="nl",
issn="0028-2162",
doi="",
url="http://dx.doi.org/"
}