Ji X, Cui W, Shan S, Liu X, Wang L, Zhang B. Study of ultrasound-guided ropivacaine combined with butorphanol continuous paravertebral block to prevent pain syndrome by evaluating ccl2 gene expression after radical mastectomy. Cell Mol Biol (Noisy-le-grand) [Internet]. 2022 Jan. 2 [cited 2024 Nov. 21];67(4):264-73. Available from: https://mail.cellmolbiol.org/index.php/CMB/article/view/4059