title: Clone controversy at Immunex.
mesh_terms: D003001:Cloning, Molecular; D004247:DNA / Q000235:genetics; D007375:Interleukin-1 / Q000096:biosynthesis*; D011994:Recombinant Proteins / Q000096:biosynthesis*
chemical_list: D007375:Interleukin-1; D011994:Recombinant Proteins; D004247:DNA