title: Botulinum toxin A in anal fissure: why does it work?
authors.forename: Wolfgang H
authors.initials: WH
authors.lastname: Jost
authors.forename: K Roger
authors.initials: KR
authors.lastname: Aoki
mesh_terms: D001003:Anal Canal / Q000294:innervation / Q000473:pathology; D019274:Botulinum Toxins, Type A / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D005401:Fissure in Ano / Q000188:drug therapy* / Q000503:physiopathology*; D006801:Humans; D009465:Neuromuscular Agents / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D010146:Pain / Q000188:drug therapy / Q000209:etiology; D013035:Spasm
chemical_list: D009465:Neuromuscular Agents; D019274:Botulinum Toxins, Type A