Background data and variations in tumor rates of control rats and mice.
D000367:Age Factors; D000818:Animals; D000830:Animals, Laboratory / Q000502:physiology*; D004032:Diet; D051379:Mice; D009115:Muridae / Q000502:physiology*; D009369:Neoplasms / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D051381:Rats; D012737:Sex Factors; D013045:Species Specificity; D013223:Statistics as Topic