Epidemiologic Overview of Synkinesis in 353 Patients with Longstanding Facial Paralysis under Treatment with Botulinum Toxin for 11 Years

Sir:Salles et al. report an important cohort of patients treated with botulinum toxin for facial paralysis sequelae,1 detailing very interesting epidemiologic data on etiologic and therapeutic levels and describing thoroughly the use of botulinum toxin in this indication. The authors mainly use botu