1. Department of Rehabilitation Medicine, University of Washington, 1959 Northeast Pacific Street, P.O. Box 356490, Seattle, WA 98195, USA
2. Department of Physical Therapy, Tzu Chi University, 701 Zhongyang Road, Section 3, Hualien 97004, Taiwan
3. Department of Chemistry and Food Science, Framingham State University, 100 State Street, Framingham, MA 01701, USA
4. Department of Physiological Sciences, University of Florida, P.O. Box 100144 HSC, Gainesville, FL 32610, USA