1. Department of Anesthesiology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
2. Laboratory Animal Research Center, Academy of Chinese Medical Sciences, Laboratory Animal Research Center, Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China
3. Department of Ultrasound, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou, Zhejiang Province, China