The importance of urethral valves as a cause of vesical neck obstruction in children.
D002648:Child; D006801:Humans; D008297:Male; D014521:Urethra / Q000002:abnormalities*; D014522:Urethral Diseases; D001745:Urinary Bladder Diseases; D001748:Urinary Bladder Neck Obstruction
BLADDER/diseases; URETHRA/abnormalities