Hospitals switch to safer needles: advocates push to avoid injuries.
D004867:Equipment Design; D006801:Humans; D008505:Medical Staff, Hospital; D009339:Needles / Q000592:standards*; D016602:Needlestick Injuries / Q000517:prevention & control*; D016272:Occupational Health / Q000331:legislation & jurisprudence*; D014481:United States