title: An unwieldy hybrid.
mesh_terms: D000818:Animals; D002678:Chimera; D033041:Embryo Research / Q000941:ethics / Q000331:legislation & jurisprudence*; D005818:Genetic Engineering / Q000941:ethics / Q000331:legislation & jurisprudence* / Q000639:trends; D006801:Humans; D006822:Hybrid Cells; D006113:United Kingdom