Effects of lumbar plexus-sciatic nerve block combined with sevoflurane on cognitive function in elderly patients after hip arthroplasty: study protocol for a prospective, single-center, open-label, randomized, controlled clinical trial

2017 ◽  
Vol 2 (2) ◽  
pp. 71
Author(s):  
A Liang-de ◽  
Yan-hong Guo ◽  
Zhen Jia
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