Bengi, G., Yalçın, M., Akpınar, H., Keskinoğlu, P., & Ellidokuz, H. (2015). Validity and reliability of the patient assessment of constipation quality of life questionnaire for the Turkish population. Turkish Journal of Gastroenterology, 26(4), 309–314. https://doi.org/10.5152/tjg.2015.0185