title: Posterior urethral valve. Problems in management of the upper urinary tract.
mesh_terms: D002648:Child; D002675:Child, Preschool; D003404:Creatinine / Q000097:blood; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D014508:Urea / Q000097:blood; D014513:Ureter / Q000473:pathology; D014521:Urethra / Q000002:abnormalities*; D014525:Urethral Stricture / Q000150:complications / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000601:surgery; D001745:Urinary Bladder Diseases / Q000150:complications; D001748:Urinary Bladder Neck Obstruction / Q000150:complications; D014549:Urinary Incontinence / Q000150:complications; D014556:Urine / Q000382:microbiology; D014567:Urography; D014718:Vesico-Ureteral Reflux / Q000150:complications
chemical_list: D014508:Urea; D003404:Creatinine