Noonan and Herbert Drs. Ennever Quotes

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...of the 20 probable human non-carcinogens with conclusive animal bioassay results, only one, methotrexate, is negative, and the other 19 are positive... Thus, the standard interpretation of animal bioassay results provides essentially no differentiation between definite human carcinogens and probable human non-carcinogens.

By Noonan and Herbert Drs. Ennever