title: Atresia of the right atrioventricular orifice in an Arabian foal.
mesh_terms: D000818:Animals; D006330:Heart Defects, Congenital / Q000473:pathology / Q000662:veterinary; D006343:Heart Septal Defects / Q000473:pathology / Q000662:veterinary; D006734:Horse Diseases / Q000151:congenital* / Q000473:pathology; D006736:Horses; D008297:Male