Botulinum toxin can distribute to a distance of 30–45 mm with the injected muscles into the adjacent muscles, although these muscles are divided by fasciae. Neck muscles are susceptible to diffusion of botulinum toxin, and paralysis of the incorrect muscles contributes to dysphonia, dysphagia or dystonia. Delicate and transient https://mortona714rox3.wikicorrespondent.com/user