Y. Çağan Appak, Şermin Y. Sapmaz, G. Doğan, A. Herdem, B. C. Özyurt, and E. Kasırga, “Clinical findings, child and mother psychosocial status in functional constipation”, Turkish Journal of Gastroenterology, vol. 28, no. 6, pp. 465–470, Jan. 2017.