1. Cost effectiveness: a new factor in orthodontics;Salzmann;Am J Orthod,1981
2. The rationale of extraction as an adjunct to orthodontic therapy and the sequelae to extraction in the absence of orthodontic guidance;Salzmann;Am J Orthod,1945
3. Containing the cost of third molar extraction; a dilemma for health insurance;Friedman;Public Health Rep,1983
4. The orthodontist in hospital care;Salzmann;Am J Orthod,1982