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美国政府科技报告
>Letter from International Isocyanate Inst., Inc. to USEPA Correcting Title of Previous Submission 'Dermal Toxicokinetics of 4,4'-MDI in Rats.', dated 05/28/1997
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Letter from International Isocyanate Inst., Inc. to USEPA Correcting Title of Previous Submission 'Dermal Toxicokinetics of 4,4'-MDI in Rats.', dated 05/28/1997