Amirabadi GE, Mirzaie M, Kushki SM, Olyaee P. Cephalometric evaluation of soft tissue changes after extraction of upper first premolars in class ΙΙ div 1 patients. J Clin Exp Dent. 2014;6(5):e539-45.

doi:10.4317/jced.51474

http://dx.doi.org/doi:10.4317/jced.51474

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