Funding for this research was provided by:
University Medical Center Groningen
Article History
Received: 10 June 2019
Revised: 15 July 2019
Accepted: 22 July 2019
First Online: 19 August 2019
Compliance with ethical standards
:
: The scientific guarantor of this publication is Thomas C. Kwee.
: The authors declare that they have no conflict of interest.
: No complex statistical methods were necessary for this paper.
: Informed consent was not applicable for this literature study.
: Ethics committee approval was not applicable for this literature study.
: None of the study subjects have been reported previously.
: • Retrospective• Observational• Performed at one institution