1. Palatal expansion: just the beginning of dentofacial orthopedics;Haas;Am J Orthod,1970
2. Transverse dimension and long-term stability;Vanarsdall;Semin Orthod,1999
3. Periodontal/orthodontic interrelationships;Vanarsdall,1994
4. Diagnosis and treatment of transverse maxillary deficiency;Betts;Int J Adult Orthodon Orthognath Surg,1995
5. The treatment of maxillary deficiency by opening the midpalatal suture;Haas;Angle Orthod,1965