Article History
Received: 24 May 2018
Revised: 28 October 2018
Accepted: 30 October 2018
First Online: 9 November 2018
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest
: No relevant relationships to this article
: This study was approved by the medical ethical committee of the Maasstad Hospital as part of a larger study, the requirement for informed consent was waived.