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...s, approved by the [[National Institutes of Health]], was performed in May 1989.<ref>{{cite journal | vauthors = Rosenberg SA, Aebersold P, Cornetta K, Kas Between 1989 and December 2018, over 2,900 clinical trials were conducted, with more tha ...

...ene knockout|genes removed]] (termed a [[knockout mouse]]) were created in 1989. The first transgenic livestock were produced in 1985<ref>{{cite journal | [[Category:1973 introductions]] ...