title: Anal fissure: unclear causes but promising new treatments.
authors.affiliation: MacDill Air Force Base, Fla., USA.
authors.forename: K
authors.initials: K
authors.lastname: Baron
mesh_terms: D001003:Anal Canal / Q000473:pathology / Q000503:physiopathology; D005401:Fissure in Ano / Q000209:etiology* / Q000503:physiopathology / Q000628:therapy*; D006801:Humans