TY - GEN AU - Whitten,S M AU - Wilcox,D T TI - Duplex systems SN - 0197-3851 PY - 2002///0214 KW - Child KW - Child, Preschool KW - Humans KW - Infant KW - Kidney Calices KW - abnormalities KW - Ultrasonography, Prenatal KW - Ureter KW - Vesico-Ureteral Reflux KW - physiopathology N1 - Publication Type: Journal Article; Review UR - https://doi.org/10.1002/pd.206 ER -