1 Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, 3400 Civic Center Blvd, 11-154 South Pavilion, Philadelphia, PA, 19104, USA.
2 Division of Cardiovascular Medicine, Department of Medicine, Hospital of the University of Pennsylvania, 3400 Civic Center Blvd, 11-154 South Pavilion, Philadelphia, PA, 19104, USA. paco.bravo@pennmedicine.upenn.edu.
3 Division of Nuclear Medicine, Department of Radiology, Hospital of the University of Pennsylvania, 3400 Civic Center Blvd, 11-154 South Pavilion, Philadelphia, PA, 19104, USA. paco.bravo@pennmedicine.upenn.edu.