1. Department of Anesthesiology, Shengjing Hospital of China Medical University, Shenyang, China
2. Department of Anesthesiology, First Affiliated Hospital of Kunming Medical University, Kunming, China
3. Department of Anesthesiology, Xijing Hospital of Fourth Military Medical University, Xi’an, China
4. Department of Anesthesiology, First Affiliated Hospital of Suzhou University, Suzhou, China