Ifran, E. K. B., B. Lombay, and L. Szabo. “Cystosonography With Echocontrast: A New Imaging Technic for Detecting Vesicoureteral Reflux in Children”. Paediatrica Indonesiana, Vol. 41, no. 1-2, Feb. 2017, pp. 1-5, doi:10.14238/pi41.1.2001.1-5.