1. Treatment planning for dentofacial deformities;Proffit,1980
2. A philosophy of orthodontic treatment;Tweed;Am J Orthod,1945
3. Diagnosis and treatment planning in orthodontics;Proffit,1986
4. Leveling the curve of Spee: its effect on mandibular arch lengths;Baldridge;J Pract Orthod,1969
5. Leveling the curve of Spee: a new prediction formula;Garcia;J Tweed Found,1985