1. Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Keelung Branch, Keelung 204, Taiwan
2. Graduate Institute of Biomedical Informatics, Taipei Medical University, Taipei 110, Taiwan
3. College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
4. Division of Plastic Surgery, Department of Surgery, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
5. Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan
6. Division of Trauma Plastic Surgery, Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan