1. State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangdong Key Laboratory of Vascular Disease, Guangzhou Institute of Respiratory HealthThe First Affiliated Hospital of Guangzhou Medical University Guangzhou China
2. State Key Laboratory of Cardiovascular Disease, Department of Cardiology, Fuwai Hospital, National Center for Cardiovascular DiseaseChinese Academy of Medical Sciences and Peking Union Medical College Beijing China
3. Department of NeurologyGuangzhou Women and Children's Medical Center Guangzhou China
4. Departments of Medicine and PhysiologyThe University of Arizona Tucson Arizona
5. Department of MedicineUniversity of California, San Diego, La Jolla California USA
6. Division of Pulmonary and Critical Care MedicineThe People's Hospital of Inner Mongolia Huhhot China