1. Graduate Institute of Dental and Craniofacial Science, Chang Gung University, Taoyuan 333, Taiwan
2. Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
3. Department of Craniofacial Orthodontics, Chang Gung Memorial Hospital, Taipei 105, Taiwan
4. Department of Public Health and Biostatistics Consulting Center, School of Medicine, Chang Gung University, Taoyuan 333, Taiwan
5. Craniofacial Research Center, Chang Gung Memorial Hospital, Linkuo, Taoyuan 333, Taiwan
6. Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan