title: Sonographic diagnosis of posterior urethral valves: report of a case.
authors.forename: C C
authors.initials: CC
authors.lastname: Wu
authors.forename: K S
authors.initials: KS
authors.lastname: Chow
authors.forename: T N
authors.initials: TN
authors.lastname: Lü
mesh_terms: D006801:Humans; D007223:Infant; D008297:Male; D014463:Ultrasonography; D014521:Urethra / Q000002:abnormalities* / Q000473:pathology; D014524:Urethral Obstruction / Q000175:diagnosis