Dayan, Steven, Steven G Yoelin, Koenraad De Boulle, and Ilia L Ferrusi. 2017. “The Psychological Impacts of Horizontal Frontalis Lines, Glabellar Lines, and Lateral Canthal Lines: Qualitative, Patient-Centered Studies”. SKIN The Journal of Cutaneous Medicine 1 (3.1):s86. https://doi.org/10.25251/skin.1.supp.85.