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| Comparison of the Application Effect of Different Approaches of Quadratus Lumborum Block under Ultrasound Guidance in Elderly Laparoscopic Cholecystectomy |
| LU Yang, ZHAO Shuang’ou |
| First-author's address: Anesthesia and Surgery Department, Yueqing People's Hospital, Yueqing 325600, China |
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Received: 25 November 2024
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