1. Department of Rehabilitation Medicine, Japanese Red Cross Medical Center: 4-1-22 Hiroo, Shibuya-ku, Tokyo 150-8935, Japan
2. Department of Physical Therapy, School of Health Sciences, International University of Health and Welfare, Japan
3. Department of Emergency Medicine, Japanese Red Cross Medical Center, Japan
4. Department of Physical Therapy, School of Health Sciences, Fukushima Medical University, Japan