@article{ritu duggal2005and,
  title={Orthopedic and orthodontic effects of Twin-block appliance},
  author={ashok kumar jena,ritu duggal,hari parkash},
  journal={Journal of Clinical Pediatric Dentistry},
  volume={29},
  number={3},
  pages={225--230},
  doi = {10.17796/jcpd.29.3.c33050g516406336},
  year={2005}
}