Funding for this research was provided by:
University Medical Center Groningen
Text and Data Mining valid from 2019-03-22
Received: 3 February 2019
Revised: 26 February 2019
Accepted: 12 March 2019
First Online: 22 March 2019
Compliance with ethical standards
: The scientific guarantor of this publication is Thomas C. Kwee.
: 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.
: No complex statistical methods were necessary for this paper.
: Written informed consent was waived by the local Institutional Review Board.
: Local Institutional Review Board approval was obtained.
: • retrospective• observational• performed at one institution