20 years of toxicology.
With over 80,000 chemicals being used in commerce worldwide, it is important to identify the human health effects of these chemicals and the levels of exposure at which they are harmful to humans. In order to address this need, the National Toxicology Program (NTP) was established in 1978; since then, the NTP has become the world's leader in designing, conducting, and interpreting various types of toxicity assays.
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D000818:Animals; D002487:Centers for Disease Control and Prevention, U.S.; D006801:Humans; D009316:National Institutes of Health (U.S.); D012106:Research; D014116:Toxicology; D014481:United States; D014486:United States Food and Drug Administration