@article{ref1,
title="Nuclear pacemakers",
journal="Lakartidningen",
year="1972",
author="Carleson, G. and Kugelberg, J.",
volume="69",
number="30",
pages="3497-3500",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0023-7205",
doi="",
url="http://dx.doi.org/"
}