Union presses for safer device.
D006769:Hospitals, General / Q000592:standards; D006801:Humans; D007750:Labor Unions; D016602:Needlestick Injuries / Q000517:prevention & control*; D010564:Personnel, Hospital; D012449:Safety; D012495:San Francisco; D014481:United States; D014489:United States Occupational Safety and Health Administration