Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) BOCCARA G,The preoperative administration of ketoprofen improves analgesia after laparoscopic cholecystectomy in comparison with propacetamol or postoperative ketoprofen,Br J Anaesth.,,,2005,94,,347-351,https://cir.nii.ac.jp/crid/1573387451064704128,