title: Genetic engineering: do we need it? How would we do it? An approach to therapeutics.
mesh_terms: D004341:Drug Evaluation; D004358:Drug Therapy; D004467:Economics; D005818:Genetic Engineering; D010452:Peptide Biosynthesis; D010957:Plasmids; D013678:Technology, Pharmaceutical; D001616:beta-Galactosidase / Q000378:metabolism
chemical_list: D001616:beta-Galactosidase