1. Stenosis of the nasal cavity by contraction of the palatal arch and abnormal position of the teeth;Pfaff;Dent Cosmos,1905
2. The application of orthodontia principles to the prevention of nasal disease;Brown;Dent Cosmos,1903
3. Rapid expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture;Haas;Angle Orthod,1961
4. The stability of maxillary expansion;Brogan;Aust Dent J,1977
5. Septal deformity malocclusion and rapid maxillary expansion;Gray;Orthodontist,1972