1. Department of Anesthesiology Southwest Medical University Luzhou Sichuan People's Republic of China
2. School of Clinical Medicine Southwest Medical University Luzhou Sichuan People's Republic of China
3. Department of Anesthesiology The Affiliated Hospital of Southwest Medical University Luzhou Sichuan People's Republic of China
4. Affiliated Xinhui Hospital Southern Medical University (People's Hospital of Xinhui District) Jiangmen Guangdong People's Republic of China