1. Department of Neurology, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.
2. Division of Pulmonary and Critical Care Medicine, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.
3. Department of Infectious Disease, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.
4. Department of Physical Medicine and Rehabilitation, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.
5. The Office of Chief Executive Officer and Chairman, Department of General Surgery, Myongji Hospital, Hanyang University College of Medicine, Goyang, Korea.