1. Department of Psychiatry; National Taiwan University Hospital; Taipei; Taiwan
2. Department of Public Health & Biostatistics Consulting Center; Chang Gung University; Taoyuan; Taiwan
3. Department of Internal Medicine; Chang Gung Memorial Hospital; Taoyuan; Taiwan
4. Traumatological Division, Department of Orthopedics; Chang Gung Memorial Hospital; Taoyuan; Taiwan
5. Department of Orthopedics; Chang Gung Memorial Hospital (Keelung Branch); Keelung; Taiwan
6. Department of Physical Medicine & Rehabilitation; Chang Gung Memorial Hospital; Taoyuan; Taiwan