The problem of mercury--again.
D001795:Blood Pressure Determination / Q000295:instrumentation*; D008284:Maintenance and Engineering, Hospital / Q000592:standards*; D008628:Mercury / Q000633:toxicity*; D016273:Occupational Exposure / Q000517:prevention & control*; D013821:Thermometers / Q000592:standards*; D014481:United States; D014489:United States Occupational Safety and Health Administration
D008628:Mercury