A.1950 B.1960 C.1965 D.1970 E.1972
A.10% B.50% C.20% D.80% E.60%~70%
A.雙輸尿管狹窄 B.輸尿管結(jié)石 C.下尿路梗阻 D.膀胱腫瘤 E.輸尿管畸形