title: EMG of the external anal sphincter: needle is superior to surface electrode.
authors.forename: A
authors.initials: A
authors.lastname: Wiesner
authors.forename: W H
authors.initials: WH
authors.lastname: Jost
mesh_terms: D001003:Anal Canal / Q000503:physiopathology*; D003248:Constipation / Q000503:physiopathology; D003672:Defecation / Q000502:physiology; D019841:Defecography; D004566:Electrodes; D004567:Electrodes, Implanted; D004576:Electromyography / Q000295:instrumentation / Q000379:methods*; D005242:Fecal Incontinence / Q000503:physiopathology; D006801:Humans; D009119:Muscle Contraction / Q000502:physiology