scholarly journals Levobupivacaine versus levobupivacaine – dexmedetomidine for ultrasound guided bilateral superficial cervical plexus block for upper tracheal resection and reconstruction surgery under general anesthesia

2021 ◽  
Vol 38 (1) ◽  
pp. 7-15
Author(s):  
Hanaa M. El Bendary ◽  
Ahmed M Abd El-Fattah ◽  
Hisham A Ebada ◽  
Salwa MS Hayes
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