1. Department of Oral and Maxillofacial Surgery, University Hospital of Giessen and Marburg, Campus Marburg, UKGM GmbH, Faculty of Medicine Philipps‐University of Marburg Marburg Germany
2. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Chulalongkorn University Bangkok Thailand
3. Department of Plastic, Reconstructive, Esthetic and Maxillofacial Surgery, Henri Mondor University Hospital, AP‐HP, Faculty of Medicine University Paris‐Est Créteil Val de Marne (Paris XII) Créteil France
4. Department of Oral and Maxillofacial Surgery, Faculty of Dentistry Mahidol University Bangkok Thailand
5. Department of Pediatric Dentistry, Faculty of Dentistry Chulalongkorn University Bangkok Thailand
6. Department of Statistics Chulalongkorn Business School Bangkok Thailand
7. Department of Otolaryngology/Head and Neck Surgery, Division of Oral and Maxillofacial Surgery, Faculty of Medicine Campus Trier, Klinikum Mutterhaus der Borromäerinnen Mitte Johannes Gutenberg University of Mainz Trier Germany