title: TPA patent battle rages in United Kingdom.
mesh_terms: D004345:Drug Industry; D005818:Genetic Engineering; D010330:Patents as Topic; D011994:Recombinant Proteins; D010959:Tissue Plasminogen Activator / Q000235:genetics; D006113:United Kingdom
chemical_list: D011994:Recombinant Proteins; D010959:Tissue Plasminogen Activator