1. PhD candidate, Department of Orthodontics, Capital Medical University School of Stomatology, Beijing, China
2. Assistant Professor of Orthodontics and Director, Mineralized Tissues and Histology Research Lab, and Director, Orthodontic Fellowship Program, Department of Orthodontics and Oral Facial Genetics, Indiana University School of Dentistry, IUPUI, Indianapolis, Ind
3. Lecturer, Department of Orthodontics, Capital Medical University School of Dentistry, Beijing, China
4. Professor, Department of Orthodontics, Capital Medical University School of Dentistry, Beijing, China