1. From the Department of Physical Therapy and Assistive Technology, National Yang-Ming University, Taipei, Taiwan (W.-H.S.); Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan (C.-P.W.); Department of Mathematics, Tamkang University; Taipei, Taiwan (Y.-C. Chang); and Department of Physical Medicine and Rehabilitation, Taipei Veterans General Hospital, National Yang-Ming University, School of Medicine, Taipei, Taiwan (C.-L.C., Y.-C. Chen, P.-Y.T.).