1. Department of Critical Care, The University of Texas MD Anderson Cancer Center, Houston, Texas
2. Department of Preventive Medicine, Hebei University of Chinese Medicine, Shijiazhuang, Hebei, China
3. Department of Neurology, Second Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
4. Hebei Collaborative Innovation Center for Cardio-cerebrovascular Disease, Shijiazhuang, Hebei, China
5. Department of Psychology, University of Houston, Houston, Texas