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2. Mercury vapor exposures in dental offices;Gronka;JADA,1970
3. Absorption and excretion of mercury in man. XV. Occupational exposure among dentists;Joselow;Arch Environ Health,1968
4. Mercury poisoning: a potential hazard to dental personnel;Meyer;Dent Progr,1962
5. Mercury hazards in dental surgeries;Nixon;J Dent Res,1964