1. Department of Physical Medicine and Rehabilitation, National Taiwan University Hospital, Bei-Hu Branch , Taipei 10845, Taiwan
2. Department of Physical Medicine and Rehabilitation, National Taiwan University College of Medicine , Taipei 10048, Taiwan
3. Department of Rehabilitation Medicine, First Faculty of Medicine and General University Hospital, Charles University in Prague , Prague 12800, Czech Republic
4. Physical and Rehabilitation Medicine Unit, Luigi Sacco University Hospital, ASST Fatebenefratelli-Sacco , Milan 20157, Italy
5. Department of Anesthesiology, Shuang Ho Hospital, Ministry of Health Welfare , New Taipei City 235041, Taiwan
6. Department of Anesthesiology, School of Medicine, College of Medicine, Taipei Medical University , Taipei 110301, Taiwan
7. Center for Regional Anesthesia and Pain Medicine, Wang-Fang Hospital, Taipei Medical University , Taipei 11600, Taiwan
8. Department of Physical and Rehabilitation Medicine, Hacettepe University Medical School , Ankara 06100, Turkey