Director / Editor: Victor Teboul, Ph.D.

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Independent and neutral with regard to all political and religious orientations, Tolerance.ca® aims to promote awareness of the major democratic principles on which tolerance is based.

Does this cause cancer? How scientists determine whether a chemical is carcinogenic – sometimes with controversial results

By Brad Reisfeld, Professor of Chemical and Biological Engineering, Colorado State University

The WHO’s International Agency for Research on Cancer convenes a panel of scientific experts to review available evidence on whether specific chemicals or occupational exposures may cause cancer.

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