Long-Term Efficacy of Oxybutynin for Palmar and Plantar Hyperhidrosis in Children Younger than 14 Years - Wolosker, Nelson; Teivelis, Marcelo P.; Krutman, Mariana; Paula, Rafael P. de; Schvartsman, Claudio; Kauffman, Paulo; Campos, José R. M. de; Puech-Leão, Pedro (Pediatric Dermatology, 2015)