The importance of urethral valves as a cause of vesical neck obstruction in children.
D002648:Child; D004194:Disease; D006801:Humans; D008297:Male; D014521:Urethra; D014522:Urethral Diseases; D001745:Urinary Bladder Diseases; D001748:Urinary Bladder Neck Obstruction
BLADDER/diseases; URETHRA/diseases