Woodward S، Norton C، Chiarelli P (مارس 2014). "Biofeedback for treatment of chronic idiopathic constipation in adults". The Cochrane Database of Systematic Reviews ع. 3: CD008486. DOI:10.1002/14651858.cd008486.pub2. PMID:24668156.
Woodward S، Norton C، Chiarelli P (مارس 2014). "Biofeedback for treatment of chronic idiopathic constipation in adults". The Cochrane Database of Systematic Reviews ع. 3: CD008486. DOI:10.1002/14651858.cd008486.pub2. PMID:24668156.