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Performing the visual analogue scale (VAS) on one of the patient photographs: The scale is from 0 (complete symmetry) to 10 (complete asymmetry). | Yamaguchi, K., Lonic, D., Ko, E. W.-C., & Lo, L.-J. (2017). An integrated surgical protocol for adult patients with hemifacial microsomia: Methods and outcome. PLOS ONE, 12(8), e0177223. Retrieved from https://doi.org/10.1371/journal.pone.0177223