Automated area measurements of lesions using image analysis.
D000818:Animals; D003201:Computers; D005753:Gastric Mucosa / Q000473:pathology; D006471:Gastrointestinal Hemorrhage / Q000473:pathology*; D008297:Male; D008838:Microcomputers; D010781:Photography / Q000662:veterinary; D051381:Rats; D011919:Rats, Inbred Strains; D013272:Stomach Diseases / Q000473:pathology*