Dental anaesthesia.
D000319:Adrenergic beta-Antagonists / Q000009:adverse effects; D000766:Anesthesia, Dental / Q000009:adverse effects*; D000769:Anesthesia, Inhalation / Q000009:adverse effects*; D001145:Arrhythmias, Cardiac / Q000209:etiology* / Q000628:therapy; D006221:Halothane / Q000009:adverse effects*; D006801:Humans; D009609:Nitrous Oxide / Q000009:adverse effects*
D000319:Adrenergic beta-Antagonists; D009609:Nitrous Oxide; D006221:Halothane