1. Department of Orthodontics, School of Stomatology, Lanzhou University, Lanzhou, China
2. Department of Orthodontics, School of Stomatology, China Medical University, Shenyang, China
3. Department of Orthodontics and Dentofacial Orthopedics, Faculty of Dentistry, Ibb University,, Ibb, Republic of Yemen
4. Department of Pre-Clinical Oral Health Sciences, College of Dental Medicine, QU Health, Qatar University, Doha, Qatar
5. Department of Orthodontics, Ningbo Dental Hospital, Ningbo, Zhejiang, China
6. Orthodontics and Dentofacial Orthopedics, Department of Preventive Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
7. Postgraduate Orthodontic Program, Department of Orthodontics, Pedodontics and Preventive Dentistry, Faculty of Dentistry, Sana’a University, Sana'a, Republic of Yemen