title: A comparison of botulinum toxin and nitroglycerin ointment for chronic anal fissure.
authors.forename: J D
authors.initials: JD
authors.lastname: Vogel
mesh_terms: D001905:Botulinum Toxins / Q000627:therapeutic use*; D002908:Chronic Disease; D004359:Drug Therapy, Combination; D005401:Fissure in Ano / Q000188:drug therapy*; D006801:Humans; D005996:Nitroglycerin / Q000627:therapeutic use*; D009824:Ointments
chemical_list: D009824:Ointments; D001905:Botulinum Toxins; D005996:Nitroglycerin