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1 jan 1999 ano - The National Toxicology Program

Descrição:

"headquartered at NIEHS, announced that Federal regulatory agencies — FDA, OSHA, EPA, and CPSC — would accept, for the first time, an alternative way to test chemicals for allergic contact dermatitis that could reduce by thousands the number of guinea pigs needed for such tests."

Adicionado na linha do tempo:

Data:

1 jan 1999 ano
Agora
~ 26 years ago