title: Bile duct dilatation and immunodeficiency in children. Report of four cases.
mesh_terms: D001649:Bile Duct Diseases / Q000150:complications* / Q000175:diagnosis; D002648:Child; D002758:Cholangiography; D004108:Dilatation, Pathologic / Q000150:complications; D006801:Humans; D007153:Immunologic Deficiency Syndromes / Q000150:complications / Q000151:congenital*; D007223:Infant; D014463:Ultrasonography