van der Ploeg, J. Marinus
Roovers, Jan-Paul W. R.
Article History
Received: 9 July 2018
Accepted: 25 October 2018
First Online: 8 November 2018
Compliance with ethical standards
:
: J. Marinus van der Ploeg: the author reports no conflict of interest.Jan-Paul W.R. Roovers: medical consultant for American Medical Systems (AMS).