TY - JOUR T1 - Transforming growth factor-β1 in congenital ureteropelvic junction obstruction: diagnosis and follow-up JO - International braz j urol A1 - Sager, Cristian A1 - Lopez, Juan C. A1 - Duran, Victor A1 - Burek, Carol A1 - Perazzo, Ernesto SN - 1677-5538 UL - 10.1590/S1677-55382009000300008 VL - 35 Y1 - 2009 PB - Brasil ER -