KOCAAY, P., EĞRİTAŞ, Ödül and DALGIÇ, B. (2011) “Normal defecation pattern, frequency of constipation and factors related to constipation in Turkish children 0-6 years old”, Turkish Journal of Gastroenterology, 22(4), pp. 369–375. doi: 10.4318/tjg.2011.0238.