Lung neoplasms in rodents after chronic administration of dimethyl hydrogen phosphite

Dimethyl hydrogen phosphite (DMHP), an intermediate in the production of insecticides or herbicides, was administered by p.o. gavage for 2 yr to male Fischer 344/N rats and male and female B6C3F1 mice at doses of 0, 100, or 200 mg/kg and to female Fischer 344/N rats at doses of 0, 50 or 100 mg/kg. D...

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