Mahdavi,M , , Esmaeili-dooki,M R , , mehrabani,S , , Hajiahmadi,M , , Moghadamnia,A A , and Moslemi,L . "The Effect of Adding Synbiotics to Polyethylene Glycol in Childhood Functional Constipation: A Randomized Clinical Trial Study", Journal of Pediatric Perspectives, 5, 7, 2017, 5357-5367. doi: 10.22038/ijp.2017.23141.1990