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(Left) Average of facial surfaces of 116 female subjects, ages 20 to 30 years. (Right) Average of facial surfaces of 100 female subjects, ages 68 to 91 years (average, 76 years). Reproduced with permission from Lambros and Amos (2016). Three-dimensional facial averaging: Tool to understand facial aging. Image can be viewed animated online (http://links.lww.com/PRS/B922).
