title: Botulinum toxin--physiology and applications in head and neck disorders.
authors.forename: Murat
authors.initials: M
authors.lastname: Unal
mesh_terms: D019274:Botulinum Toxins, Type A / Q000627:therapeutic use*; D006801:Humans; D009498:Neurotoxins / Q000627:therapeutic use*; D006255:Rhinitis, Allergic, Seasonal / Q000188:drug therapy*
chemical_list: D009498:Neurotoxins; D019274:Botulinum Toxins, Type A