title: Preemptive analgesia with ketamine.
authors.forename: R
authors.initials: R
authors.lastname: Miguel
authors.forename: E
authors.initials: E
authors.lastname: Fu
mesh_terms: D000698:Analgesia; D000701:Analgesics, Opioid / Q000627:therapeutic use; D004992:Ethics, Medical; D006801:Humans; D007649:Ketamine / Q000627:therapeutic use*
chemical_list: D000701:Analgesics, Opioid; D007649:Ketamine