@article{sadeghi_hedayati_mousavi-fard_2019,  title={Comparison of two asymmetric headgear force systems: A finite element analysis},  volume={24},  ISSN={2176-9451},  url={https://doi.org/10.1590/2177-6709.24.2.41.e1-6.onl},  DOI={10.1590/2177-6709.24.2.41.e1-6.onl},  number={2},  journal={Dental Press Journal of Orthodontics},  publisher={Dental Press International},  author={Sadeghi, Samaneh and Hedayati, Zohreh and Mousavi-Fard, Batoolalsadat},  year={2019},  month={Mar},  pages={41.e1–41.e6} }