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1 Effects of reversing the coiling direction on the force-deflection characteristics of nickel-titanium closed-coil springs
Hwan-Hyung Park, Suk-Hwan Jung, Juil Yoon, Kwang Koo Jee, Jun Hyun Han, Seung-Hak Baek
Korean J Orthod.2019;49(4):214-221.   Published online 2019 July 22     DOI: http://dx.doi.org/10.4041/kjod.2019.49.4.214
      

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