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Scatter plots of cheek skin elasticity according to the AGE level. Correlations between SGIcheek and (a) R2 cheek (R = −0.56, P < .01), (b) R5cheek (R = −0.57, P < .01), and (c) R7cheek (R = −0.61, P < .01). AGEs, advanced glycation end products; SGIcheek, skin glycation index from the cheek measured using the facial glycation imaging system; R2 cheek, gross elasticity; R5cheek, net elasticity; R7cheek, skin firmness; AU, arbitrary unit
