scholarly journals Retraction Note: Preoperative versus postoperative ultrasound-guided rectus sheath block for improving pain, sleep quality and cytokine levels in patients with open midline incisions undergoing transabdominal gynecological surgery: a randomized controlled trial

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Feng Jin ◽  
Zhe Li ◽  
Wen-fei Tan ◽  
Hong Ma ◽  
Xiao-qian Li ◽  
...  

This article has been retracted. Please see the Retraction Notice for more detail: 10.1186/s12871-021-01437-z

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