@article{ref1,
title="Beware of collider stratification bias when analyzing recurrent injuries",
journal="Scandinavian journal of medicine and science in sports",
year="2022",
author="Shrier, Ian and Stovitz, Steven D. and Wang, Chinchin and Steele, Russell J.",
volume="32",
number="2",
pages="270-272",
abstract="[The publisher has not provided an abstract for this article.]<p /> <p>Language: en</p>",
language="en",
issn="0905-7188",
doi="10.1111/sms.14093",
url="http://dx.doi.org/10.1111/sms.14093"
}