Funding for this research was provided by:
National Heart, Lung, and Blood Institute (F32-HL-134290)
Received: 19 April 2017
Accepted: 24 July 2017
First Online: 7 August 2017
Compliance with ethical standards
: Dr. Nazarian is principal investigator for research funds awarded to Johns Hopkins University from Biosense Webster Inc and is also a consultant to Biosense Webster, St Jude Medical, CardioSolv, and Spectranetics. The other authors declare that they have no competing interests.
: All procedures in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.