1. The limitations of orthodontic treatment. II;Nance;Amer. J. Orthodont. & Oral Surg.,1947
2. The removal of second premolars in orthodontic treatment;Nance;Amer. J. Orthodont.,1949
3. Diagnosis and case analysis in orthodontics;Carey;Amer. J. Orthodont.,1952
4. Second premolar extraction in orthodontics;Dewel;Amer. J. Orthodont.,1955
5. Indications and contra-indications for extraction in orthodontic treatment;Keedy;Angle Orthodont.,1956