1 Division of Cardiology, University of Arizona, Banner University Medical Center, 755 East McDowell Road, Phoenix, AZ 85006, USA. Electronic address: Marvin.eng@bannerhealth.com.
2 Division of Cardiovascular Medicine, Knight Cardiovascular Institute Cardiology Clinic, Oregon Health and Science University, 3303 South Bond Avenue, Building 1, 7th Floor, Portland, OR 97239, USA. Electronic address: zahr@ohsu.edu.