1. Intermountain Medical Center, Intermountain Heart Institute, 5121 S., Cottonwood St, Murray, UT 84107, USA
2. University of Utah School of Medicine, Salt Lake City, UT, USA
3. Intermountain Medical Center, Intermountain Heart Institute, Murray, UT, USA
4. Janssen Research and Development LLC, Raritan, NJ, USA
5. Retired; at time of study was with Janssen Research and Development LLC, Raritan, NJ, USA