https://www.fda.gov/regulatory-information/search-fda-guidance-documents/redbook-2000-ivc7-combined-chronic-toxicitycarcinogenicity-studies-rodents
Toxicological Principles for the Safety Assessment of Food Ingredients - Chapter IV.C.7. Combined Chronic Toxicity/Carcinogenicity Studies with Rodents
chronic toxicityredbookivcombinedcarcinogenicity