1. Department of Physical Medicine & Rehabilitation, Loma Linda University School of Medicine, Loma Linda, California, USA, Department of Physical Medicine & Rehabilitation, Loma Linda University School of Medicine, 25333
Barton Road, Loma Linda, California 82354, USA;, Email: twangtw@gmail.com
2. Department of Physical Therapy, Kaiser Permanente Fontana/ Ontario, Ontario, California, USA