Brunner, M.
Roth, H.
Günther, K.
Grützmann, R.
Matzel, K. E.
Article History
Accepted: 31 January 2018
First Online: 13 February 2018
Compliance with ethical standards
:
: K.E. Matzel is medical adviser to Medtronic.M. Brunner has received an honorarium for lecturing at a Medtronic workshop.
: For this type of study, formal consent is not required.
: This article does not contain any studies with animals performed by any of the authors.
: In this study, there is no identifying information of patients.