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Published dose-response curves of promoters of multistage carcinogenesis were selected that met the combined criteria of long study times, multiple doses, and low doses. In rat liver, 12 dose-response studies of 7 different promoters (phenobarbital, 2,3,7,8-tetrachlorodibenzo-p-dioxin [TCDD], clophen A-50 (a polychlorinated biphenyl), alpha-, beta-, and(More)
A problem that hormesis has in being more scientifically accepted is (1) proving that only one mechanism accounts for both the 'beneficial' and 'toxic' parts of the biphasic dose-response curve and (2) giving substantial evidence against the interpretation that 'hormesis' is the sum of many different mechanisms which add up to either 'beneficial' or 'toxic'(More)
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