title: Ketamine-induced preemptive analgesia: different effects of spinal and intravenous administrations.
authors.forename: P W
authors.initials: PW
authors.lastname: Lui
mesh_terms: D000698:Analgesia; D000700:Analgesics / Q000008:administration & dosage*; D000818:Animals; D007275:Injections, Intravenous; D007278:Injections, Spinal; D007649:Ketamine / Q000008:administration & dosage*; D051381:Rats
chemical_list: D000700:Analgesics; D007649:Ketamine