1. Evaluation of facial soft tissues;Sarver,2003
2. Kelly JE, Harvey CR: An assessment of the occlusion of the teeth of youths 12-17 years, U.S. Public Health Service Publication No 77:164, Government Printing Office, 1977.
3. Face height and dental relationships in 1600 children: a survey;McLain;J Dent Res,1983
4. Surgical correction of dentofacial deformities: new concepts;Bell,1985
5. Who seeks surgical-orthodontic treatment?;Proffit;Int J Adult Orthod Orthognath Surg,1990