The BfR responded that IARC reviewed only a selection of what they had reviewed earlier, and argued that other studies, including a cohort study called "Agricultural Health Study", do not support the classification. The IARC report did not include unpublished studies, including one completed by the IARC panel leader. The agency's international protocol dictates that only published studies be used in classifications of carcinogenicity, since national regulatory agencies including the EPA have allowed agrochemical corporations to conduct their own unpublished research, which may be biased in support of their profit motives.