A Multi-Center, Open-Label Extension Study to Assess the Long-Term Safety, Tolerability and Pharmacokinetics, and Explore the Efficacy of Sofpironium Bromide Gel, 15% Applied Topically to Children Adolescents, 9-16 Years, With Primary Axillary Hyperhidrosis. J of Skin 2020, 4 (6), s116. https://doi.org/10.25251/skin.4.supp.116.