title: Congenital nonobstructive hydronephrosis and bilateral vesicoureteral reflux in identical twins.
mesh_terms: D004200:Diseases in Twins / Q000151:congenital* / Q000000981:diagnostic imaging; D006801:Humans; D006869:Hydronephrosis / Q000000981:diagnostic imaging / Q000235:genetics*; D007223:Infant; D008297:Male; D014567:Urography; D014718:Vesico-Ureteral Reflux / Q000000981:diagnostic imaging / Q000235:genetics*