Analgesic effect of periarticular Ropivacaine infiltration and cyclooxygenase-2 inhibitor following total hip arthroplasty
Lu Zhi-dong, Li Peng
Chinese Journal of Tissue Engineering Research . 2010, (43): 7991 -7994 .  DOI: 10.3969/j.issn.1673-8225.2010.43.004