Hanhivaara, Jaakko
Määttä, Juhani H.
Niinimäki, Jaakko
Nevalainen, Mika T. http://orcid.org/0000-0002-9483-7690
Funding for this research was provided by:
University of Oulu including Oulu University Hospital
Article History
Received: 17 December 2019
Revised: 12 January 2020
Accepted: 29 January 2020
First Online: 19 February 2020
Compliance with ethical standards
:
: The scientific guarantor of this publication is Mika Nevalainen.
: The authors of this manuscript declare no relationships with any companies whose products or services may be related to the subject matter of the article.
: One of the authors (Juhani Määttä) has significant statistical expertise.
: Written informed consent was waived by the Institutional Review Board.
: Institutional Review Board approval was obtained.
: • Retrospective• Case-control study• Performed at one institution