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Original Article
Clinical study of urinary tract infection, natural courses, and prenatal ultrasonographic results according to the grades of hydronephrosis
Jee-Hee Lee, Jun-Woo Kim, Ji-Eun Yoon, Tae-Sun Ha
Clin Exp Pediatr. 2009;52(8):917-921.   Published online August 15, 2009

Purpose:Although renal ultrasonography (USG) has improved the detection rate of hydronephrosis (HN), its clinical courses and postnatal management remains controversial. Here, we reviewed the clinical features of patients with HN according to the grades. Methods:We retrospectively studied 207 patients who were regularly followed-up among 367 patients with HN detected by renal USG postnatally between April 1998 and December 2007. These patients were grouped...