Townsend, Raymond R.
Sobotka, Paul A.
Article History
First Online: 10 September 2018
Compliance with Ethical Standards
:
: Dr. Townsend reports personal fees from Medtronic and Rox Medical, outside the submitted work. Dr. Sobotka is Executive Consultant to Rox Medical.
: This article does not contain any studies with human or animal subjects performed by any of the authors.