Mushtaq, Iqra, et al. “CAUSES OF CHRONIC NON-INFECTIOUS DIARRHOEA IN INFANTS LESS THAN 6 MONTHS OF AGE: RARELY RECOGNIZED ENTITIES”. Journal of Ayub Medical College Abbottabad, vol. 29, no. 1, Jan. 2017, pp. 78-82, https://jamc.ayubmed.edu.pk/index.php/jamc/article/view/1290.