1. Department of Oral Radiology; Academic Centre for Dentistry Amsterdam (ACTA); University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
2. Department of Oral Kinesiology; Academic Centre for Dentistry Amsterdam (ACTA); MOVE Research Institute Amsterdam; University of Amsterdam and VU University Amsterdam; Amsterdam The Netherlands
3. Department of Orthodontics; School of Dentistry; Shandong University; Jinan China
4. Aerodynamics Laboratory; University of Chinese Academy of Science; Beijing China