1. Department of General Surgery, The Affiliated Cancer Hospital of Zhengzhou University,Zhengzhou, Henan, China.
2. Department of Anesthesiology and Critical Care, Perelman School of Medicine at the University of Pennsylvania, 336 John Morgan building, 3620 Hamilton Walk, Philadelphia, PA 19104
3. Department of Anesthesiology, The Affiliated Cancer Hospital of Zhengzhou University,Zhengzhou, Henan, China.
4. Department of Anesthesiology, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s Hospital
5. Department of Anesthesiology, Shenzhen University General Hospital, Shenzhen, China
6. School of Art and Science, University of Pennsylvania, 336 John Morgan building, 3620 Hamilton Walk, Philadelphia, PA 19104