作者: C.T. McCrea , K.W. Head
DOI: 10.1016/S0007-1935(17)33387-0
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摘要: SUMMARY Between 1964 and 1977 86 tumours were found in 62 sheep from seven farms situated at the upper ends of six valleys on North York Moors. This represents an unusual geographical cluster high prevalence. The problems setting a figure this are discussed. highest frequency was one group 14 sheep, years old over, which three tumour bearers detected. categorized as: 45 fibrosarcoma (41 jaws); papilloma rumen; squamous cell carcinoma (six alimentary tract); adenocarcinoma intestine; thre primary liver; two localized lymphosarcoma (one kidney thymus) epithelial thymoma.