Bioprogressive therapy. Part 6.

@article{Bench1978BioprogressiveTP,
  title={Bioprogressive therapy. Part 6.},
  author={R W Bench and C F Gugino and James J Hilgers},
  journal={Journal of clinical orthodontics : JCO},
  year={1978},
  volume={12 2},
  pages={123-39}
}