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Three propellant chlorofluorocarbons, namely trichlorofluoromethane (FC11), dichlorodifluoromethane (FC12), and chlorodifluoromethane (FC22) were administered by inhalation at a concentration of(More)
After having stressed the need of primary prevention in the strategy for cancer control, the crucial role of the long-term carcinogenicity bioassays in providing scientific support to primary(More)
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