title: Double cranial vena cava in a cow: case report and review of the literature.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000151:congenital*; D005260:Female; D006325:Heart Atria / Q000002:abnormalities*; D014683:Vena Cava, Superior / Q000002:abnormalities*