title: Chronic Anal Fissures.
authors.affiliation: Northern General Hospital, Sheffield, United Kingdom.
authors.forename: Richard L
authors.initials: RL
authors.lastname: Nelson
mesh_terms: D002908:Chronic Disease; D003113:Colonoscopy / Q000379:methods*; D013505:Digestive System Surgical Procedures / Q000379:methods*; D005401:Fissure in Ano / Q000175:diagnosis* / Q000601:surgery*; D006801:Humans