title: Evaluation of anal sphincter defects.
authors.forename: A
authors.initials: A
authors.lastname: Wald
mesh_terms: D001004:Anus Diseases / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000503:physiopathology; D004576:Electromyography; D006801:Humans; D012680:Sensitivity and Specificity; D014463:Ultrasonography