title: Paradoxical puborectalis contraction in children.
authors: R
authors: R
authors: Steffen
authors: T K
authors: TK
authors: Schroeder
mesh_terms: D001676:Biofeedback, Psychology; D002648:Child; D002908:Chronic Disease; D003248:Constipation / Q000209:etiology / Q000628:therapy; D006801:Humans; D009119:Muscle Contraction; D012007:Rectum / Q000503:physiopathology*