PERCUTANEOUS NEPHROLITHOTOMY IN CHILDREN WITH CYSTINE STONES - Dogan, Cagatay; Citgez, Sinharib; Argun, Burak; Onder, Ali Ulvi; Yalcin, Veli; Erozenci, Nur Ahmet; Onal, Bulent (MARY ANN LIEBERT, INC, 2012)