Schroemges, J.
Bracke, F. A. L. E.
van Gelder, B. M.
Article History
First Online: 25 June 2018
Conflict of interest
: B.M. van Gelder is a clinical advisor for LivaNova, France. J. Schroemges and F.A.L.E. Bracke declare that they have no competing interests.