title: Laughing gas is no laughing matter.
mesh_terms: D000766:Anesthesia, Dental / Q000009:adverse effects*; D003797:Dental Staff; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*; D009784:Occupational Diseases / Q000517:prevention & control*
chemical_list: D009609:Nitrous Oxide