Chronic toxicity and carcinogenicity of 1,2,3,4,6,7,8-heptachlorodibenzo-p-dioxin displays a distinct dose/time toxicity threshold (c Ã t = k) and a life-prolonging subthreshold effect
Keywords: Heptachlorodibenzo-p-dioxin; Chronic toxicity; Carcinogenicity; Hormesis;