@article{derek mahony2002functional,
  title={Combining functional appliances in the straightwire system},
  author={derek mahony},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={26},
  number={2},
  pages={137--140},
  doi = {10.17796/jcpd.26.2.r617n2568mq4403v},
  year={2002}
}