1. Division of Cardiology, Hangang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
2. Division of Cardiology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea.
3. Division of Cardiology, Chuncheon Sacred Heart Hospital, Hallym University College of Medicine, Chuncheon, Korea.
4. Division of Cardiology, Patan Academy of Health Sciences, Patan, Nepal.
5. Department of Pathology, Mongolian National University of Medical Sciences, Ulaanbaatar, Mongolia.