title: Colorado, Maryland reject proposals for needle swaps.
mesh_terms: D003120:Colorado; D003376:Counseling; D015658:HIV Infections / Q000517:prevention & control*; D006801:Humans; D008396:Maryland; D018671:Needle-Exchange Programs / Q000331:legislation & jurisprudence*; D019966:Substance-Related Disorders / Q000534:rehabilitation