1 MedStar Washington Hospital Center, Washington, District of Columbia, USA. Electronic address: [email protected].
2 Department of Cardiology, Barts Heart Centre, Barts Health NHS Trust, London, United Kingdom; Cardiovascular Devices Hub, Centre for Cardiovascular Medicine and Devices, William Harvey Research Institute, Queen Mary University of London, London, United Kingdom; Institute of Cardiovascular Sciences, University College London, London, United Kingdom.