1 From the Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei, Taiwan (W-TW, Y-CH, K-VC); Center for Regional Anesthesia and Pain Medicine, Wang-Fang Hospital, Taipei Medical University, Taipei, Taiwan (KV-C); and Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara, Turkey (LÖ).