1. Department of Physical Medicine and Rehabilitation; Shin Kong Wu Ho-Su Memorial Hospital; Taipei Taiwan
2. School of Medicine; College of Medicine; Taipei Medical University; Taipei Taiwan
3. Department of Public Health; Taipei Medical University; Taipei Taiwan
4. Institute of Epidemiology and Preventive Medicine; College of Public Health; National Taiwan University; Taipei Taiwan
5. Department of Pediatrics; Shin Kong Wu Ho-Su Memorial Hospital; Taipei Taiwan