Botulinum toxin can unfold into a length of thirty–45 mm through the injected muscles into the adjacent muscles, even if these muscles are divided by fasciae. Neck muscles are prone to diffusion of botulinum toxin, and paralysis of the incorrect muscles leads to dysphonia, dysphagia or dystonia. Gentle and https://andresmwbkq.wikiusnews.com/1555866/about_botulinum_toxins_a_and_b