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. 2015 Jul 29;56(5):1395–1400. doi: 10.3349/ymj.2015.56.5.1395

Fig. 4. LOESS regression curves illustrating the trend of changes in glabellar, maxillary, orbital, and pyriform angles based on 108 male data points. Glabellar (A) and maxillary (B) angles show statistically significant decreases with aging, while orbital (C) and pyriform (D) angles do not.

Fig. 4