1. Department of Anesthesiology, The University of Hong Kong, 102 Pokfulam Road, Hong Kong
2. Department of Anesthesiology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
3. Department of Pharmacology & Toxicology, Boonshoft School of Medicine, Wright State University, 3640 Colonel Glenn Highway, Dayton, OH 45435, USA
4. Cardiovascular Department, Guangzhou Institute of Cardiovascular Disease, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510000, China
5. Department of Cardiology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
6. Department of Neurology, The First Affiliated Hospital, Henan University, 357 Ximen Street, Kaifeng 470010, China