1. Department of Rehabilitation Medicine, Inje University Sanggye Paik Hospital, Seoul, Korea.
2. Division of Cardiology, Department of Medicine, Sungkyunkwan University School of Medicine, Seoul, Korea.
3. Department of Physical Medicine and Rehabilitation, Chonnam National University Hospital, Chonnam National University Medical School, Gwangju, Korea.
4. Department of Rehabilitation Medicine, Chungnam National University Hospital, Chungnam National University College of Medicine, Daejeon, Korea.
5. Department of Physical Medicine and Rehabilitation, National Health Insurance Service Ilsan Hospital, Goyang, Korea.
6. Department of Physical Medicine and Rehabilitation, Dong A University College of Medicine, Busan, Korea.
7. Department of Rehabilitation Medicine, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seongnam, Korea.
8. Department of Rehabilitation Medicine, Chungbuk National University, College of Medicine, Cheongju, Korea.
9. Department of Rehabilitation Medicine, Kangwon National University School of Medicine, Chuncheon, Korea.
10. Department of Physical Medicine and Rehabilitation, Inha University Hospital, Incheon, Korea.
11. Department of Rehabilitation Medicine, Kyungpook National University Hospital, Kyungpook National University School of Medicine, Daegu, Korea.
12. Department of Rehabilitation Medicine, Jeju National University Hospital, Jeju National University College of Medicine, Jeju, Korea.
13. Department of Rehabilitation Medicine, Wonkwang University Hospital, Wonkwang University Medical School, Iksan, Korea.
14. Department of Physical Medicine and Rehabilitation, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Korea.