Özkütük, Nilay, İsmet Eşer, and Serhat Bor. 2021. “Effectiveness of Biofeedback Therapy on Quality of Life in Patients With Dyssynergic Defecation Disorder”. Turkish Journal of Gastroenterology 32 (1):22-29. https://doi.org/10.5152/tjg.2020.19678.