Text and Data Mining valid from 2019-01-31
First Online: 31 January 2019
Compliance with Ethical Standards
: David Diehl reports working as a consultant for Boston Scientific, Medtronic, Olympus America, and Cook Medical. Shaffer Mok reports working as a consultant for Medtronic and grants from Pentax/C2 Therapeutics, outside the submitted work.
: This article does not contain any studies with human or animal subjects performed by any of the authors.