title: Congenital defect of the atlantooccipital joint in a Holstein-Friesian calf.
mesh_terms: D000818:Animals; D001269:Atlanto-Occipital Joint / Q000002:abnormalities* / Q000000981:diagnostic imaging; D002417:Cattle; D002418:Cattle Diseases / Q000151:congenital* / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D011859:Radiography