Funding for this research was provided by:
University of Groningen
Article History
Received: 18 June 2019
Revised: 13 September 2019
Accepted: 9 October 2019
First Online: 8 November 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Dr. Yfke Ongena.
: The authors declare that they have no competing interests.
: Two of the authors (Dr. Ongena and Dr. Haan) have significant statistical expertise.
: Written informed consent was obtained from all subjects (patients) in this study.
: Institutional review board approval was obtained. The study was approved by the local institutional review board of the University Medical Center Groningen (IRB number: 201800873).
: • prospective• cross-sectional study• performed at one institution