Application of hydromorphone combined with ketorolac tromethamine in analgesia for patients undergoing laparoscopic cholecystectomy

Weng Hongliang, Li Yujian, Li Zhibing, Li Xingda, Chen Benfa, Ma Yufeng
International Medicine and Health Guidance News . 2023, (12): 1670 -1673 .  DOI: 10.3760/cma.j.issn.1007-1245.2023.12.010

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