1. Surgical orthodontic expansion of the maxilla;Bell;Am. J. Orthod.,1976
2. Surgical orthodontic expansion of the maxilla;Bell;J. Oral Surg.,1979
3. Forces produced by rapid maxillary expansion. II. Forces present during treatment;Isaacson;Angle Orthod.,1964
4. Osteotomy as an adjunct to rapid maxillary expansion;Bell;Am. J. Orthod.,1976
5. Le Fort I osteotomy for correction of maxillary deformities;Bell;J. Oral Surg.,1975