Nitrous oxide concentrations in the dental operatory.
D000281:Administration, Intranasal; D000388:Air / Q000032:analysis*; D000766:Anesthesia, Dental; D004781:Environmental Exposure; D009609:Nitrous Oxide / Q000008:administration & dosage / Q000032:analysis; D009873:Operating Rooms; D013515:Surgery, Oral
D009609:Nitrous Oxide