Perosomus elumbis in Hereford calves.
D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000151:congenital*; D003050:Coccyx / Q000002:abnormalities; D008159:Lumbar Vertebrae / Q000002:abnormalities; D008297:Male; D012447:Sacrum / Q000002:abnormalities; D013131:Spine / Q000002:abnormalities*