1. Department of Cardiology, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
2. Medtronic Korea, Ltd., Seoul, Korea.
3. Division of Cardiology, Department of Internal Medicine, Severance Cardiovascular Hospital, Yonsei University College of Medicine, Seoul, Korea.
4. Graduate School for Medical Device Management and Research, Samsung Advanced Institute for Health Science & Technology (SAIHST), Sungkyunkwan University, Seoul, Korea.