1. Kaohsiung Rukang Physiotherapy Clinic, Kaohsiung 83050, Taiwan
2. Department of Physical Medicine and Rehabilitation, Lotung Poh-Ai Hospital, Yilan 26546, Taiwan
3. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 10048, Taiwan
4. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch, Taipei 10845, Taiwan
5. Center for Regional Anesthesia and Pain Medicine, Wang-Fang Hospital, Taipei Medical University, Taipei 11696, Taiwan
6. Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School, Ankara 06100, Turkey