@article{ref1,
title="Whether sports participation is healthy or detrimental for the individual is a matter of dosage",
journal="Netherlands heart journal",
year="2018",
author="Smeets, J. L. R. M.",
volume="26",
number="3",
pages="113-114",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1568-5888",
doi="10.1007/s12471-018-1083-7",
url="http://dx.doi.org/10.1007/s12471-018-1083-7"
}