title: Physiological changes during relative analgesia--a clinical study.
mesh_terms: D000293:Adolescent; D000766:Anesthesia, Dental; D000769:Anesthesia, Inhalation; D001794:Blood Pressure / Q000187:drug effects; D002648:Child; D002675:Child, Preschool; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D009048:Motor Skills / Q000187:drug effects; D009609:Nitrous Oxide / Q000494:pharmacology*; D010100:Oxygen / Q000494:pharmacology; D012119:Respiration / Q000187:drug effects; D013997:Time Factors; D014796:Visual Perception / Q000187:drug effects
chemical_list: D009609:Nitrous Oxide; D010100:Oxygen