1. An assessment of the occlusion of the teeth of youths 12–17 years;Kelly;United States, DHEW Publication No. HRA77-1644,1977
2. Varieties of anterior open-bite;Nahoum;Am. J. Orthod.,1972
3. Analyses of dentofacial vertical proportions;Sassouni;Am. J. Orthod.,1964
4. Cephalometric diagnosis and surgical-orthodontic correction of apertognathia;Frost;Am. J. Orthod.,1980