Lauren Dowdy a, Galen S Wagner, MD a, Yochai Birnbaum, MD b, Peter Clemmensen, MD, PhD e, Jocelyne Fayn, PhD c, Paul Rubel, PhD, Sophia Zhou, PhD d, Per Johanson, MD, PhD a, ⁎ 
a Duke Clinical Research Center (LD, GSW, PJ), Durham, North Carolina, USA
b Division of Cardiology (YB), The University of Texas Medical Branch, Galveston, Texas, USA
c Hôpital Louis Pradel (JF), Lyon, France
d Advanced Algorithm Research Center (SZ), Philips Medical Systems, Oxnard, California, USA
d The Heart Center (PC), Rigshospitalet, University of Copenhagen, Copenhagen, Denmark