1. Displacement of the upper jaw;Cheever;Med Surg Rp Boston City Hosp,1870
2. Le Fort I osteotomy for correction of maxillary deformities;Bell;J Oral Surg,1975
3. Dentofacial Deformities: Surgical—Orthodontic Correction;Epker,1980
4. Surgical correction of small and retrodisplaced maxillae;Obwegeser;Plast Reconstr Surg,1969