Botulinum toxin can spread into a length of 30–45 mm from the injected muscles towards the adjacent muscles, whether or not these muscles are divided by fasciae. Neck muscles are liable to diffusion of botulinum toxin, and paralysis of the incorrect muscles causes dysphonia, dysphagia or dystonia. Moderate and https://botulinum-toxins52739.wiki-jp.com/1541975/little_known_facts_about_botulinum_toxins