1. Mechanics, growth, and Class II corrections;Hultgren;Am J Orthod,1978
2. Experiences on widening the median maxillary suture;Thörne;Trans Eur Orthod Soc,1956
3. Rapid expansion of the maxillary dental arch and nasal cavity by opening the midpalatal suture;Haas;Angle Orthod,1961
4. Some effects of rapid maxillary expansion in cleft lip and palate patients;Isaacson;Angle Orthod,1964
5. Anatomical changes induced by splitting the midpalatal suture;Davis;Angle Orthod,1969