title: Electronic prescriptions for controlled substances.
mesh_terms: D001244:Association; D004360:Drug Therapy, Computer-Assisted; D004335:Drug and Narcotic Control / Q000331:legislation & jurisprudence / Q000379:methods*; D055695:Electronic Prescribing; D006801:Humans; D007880:Legislation, Drug; D009907:Optometry; D014481:United States