title: Assessment of plasma free fatty acids in the evaluation of operative and postoperative analgesia.
mesh_terms: D000328:Adult; D000698:Analgesia; D000758:Anesthesia; D005230:Fatty Acids, Nonesterified / Q000097:blood*; D005260:Female; D006221:Halothane / Q000494:pharmacology; D006801:Humans; D007649:Ketamine / Q000494:pharmacology; D008297:Male; D008614:Meperidine / Q000494:pharmacology; D008875:Middle Aged; D013514:Surgical Procedures, Operative; D013997:Time Factors
chemical_list: D005230:Fatty Acids, Nonesterified; D007649:Ketamine; D008614:Meperidine; D006221:Halothane