1 Assistant Professor, Department of Oral Maxillofacial Surgery, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA.
2 Assistant Professor, Department of Pediatrics, Children's Healthcare of Atlanta, Emory University School of Medicine, Atlanta, GA, USA.
3 Professor and Chair, Department of Orthodontics, University of Alabama at Birmingham School of Dentistry, Birmingham, AL, USA.
4 Associate Professor, Division of Oral Maxillofacial Surgery, Department of Surgery, Emory University School of Medicine, Atlanta, GA, USA; Chief, Oral and Maxillofacial Surgery, Children's Healthcare of Atlanta, Atlanta, GA, USA. Electronic address: [email protected].