1. Five year clinical evaluation of the Andrews' straight-wire appliance;Roth;J Clin Orthod,1976
2. The straight-wire appliance;Andrews;J Clin Orthod,1976
3. The straight-wire appliance;Andrews;J Clin Orthod,1976
4. The straight-wire appliance;Andrews;J Clin Orthod,1976
5. The SPEED system: a report on the development of a new edgewise appliance;Hanson;Am J Orthod,1980