Effect of Preventive Analgesia with Oxycodone and Parecoxib Sodium on the Chronification of Acute Post-operative Pain
Conditions
- Oxycodone
- Chronic Pain, Postoperative
Interventions
- DRUG: oxycodone and parecoxib sodium combinations
- DRUG: Placebo and parecoxib sodium combinations
Sponsor
Ailin Luo
Collaborators
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