Hg (mercury).
D000395:Air Pollutants, Occupational / Q000633:toxicity*; D003727:Dental Auxiliaries; D003815:Dentists; D006801:Humans; D008628:Mercury / Q000633:toxicity*; D009784:Occupational Diseases / Q000517:prevention & control*
D000395:Air Pollutants, Occupational; D008628:Mercury