[Valves of posterior urethra].
D000367:Age Factors; D000013:Congenital Abnormalities / Q000601:surgery; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008722:Methods; D014521:Urethra / Q000002:abnormalities*; D014555:Urination Disorders / Q000209:etiology
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