Caution: nitrous oxide in use.
D000395:Air Pollutants, Occupational / Q000009:adverse effects*; D003727:Dental Auxiliaries; D003815:Dentists; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*; D009784:Occupational Diseases / Q000139:chemically induced* / Q000517:prevention & control
D000395:Air Pollutants, Occupational; D009609:Nitrous Oxide