title: The past, present and future tense of sedation.
mesh_terms: D000766:Anesthesia, Dental / Q000639:trends*; D000776:Anesthesiology / Q000193:education; D001315:Australia; D006801:Humans; D006993:Hypnotics and Sedatives / Q000008:administration & dosage*; D009609:Nitrous Oxide / Q000008:administration & dosage
chemical_list: D006993:Hypnotics and Sedatives; D009609:Nitrous Oxide