title: [Nonradiopaque ureteral obstruction with special reference to electron microscopic study of transitional cell carcinoma].
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002295:Carcinoma, Transitional Cell / Q000150:complications / Q000648:ultrastructure*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography; D014513:Ureter / Q000000981:diagnostic imaging; D014516:Ureteral Neoplasms / Q000150:complications / Q000648:ultrastructure*; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology