Göksel Bengi, Mustafa Yalçın, Hale Akpınar, Pembe Keskinoğlu, and Hülya Ellidokuz, “Validity and reliability of the patient assessment of constipation quality of life questionnaire for the Turkish population”, Turkish Journal of Gastroenterology, vol. 26, no. 4, pp. 309–314, Jul. 2019.