Complications in field diagnosis of Johne's disease in sheep.
D000818:Animals; D003951:Diagnostic Errors / Q000662:veterinary; D007413:Intestinal Mucosa / Q000473:pathology; D008099:Liver / Q000473:pathology; D008297:Male; D009161:Mycobacterium / Q000302:isolation & purification; D010283:Paratuberculosis / Q000175:diagnosis*; D012756:Sheep; D012757:Sheep Diseases / Q000175:diagnosis*