The director of the International Agency for Research on Cancer (Iarc), has defended the agency's process for determining whether substances are carcinogenic. His intervention comes in response to a critical inquiry from a US congressional committee.
"In summary, the cancer hazard classifications made by the Iarc monographs are the result of scientific deliberations of working groups of independent scientists, free from conflicts of interest," Christopher P Wild wrote in a letter to the chairs of two Congress committees.
Representatives Lamar Smith (R-Texas), chair of the House Science, Space, and Technology Committee, and Andy Biggs (R-Arizona), chair of its Environment Subcommittee, had earlier written to Iarc and the Department of Health and Human Services on 1 November, demanding information on the agency's monograph programme.
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