1. Clinical Medical College of Yangzhou University, Department of Respiratory Medicine Subei People’s Hospital Yangzhou China
2. Department of Respiratory Medicine Subei People’s Hospital, Dalian Medical University Yangzhou China
3. The Affiliated Hospital of Yangzhou University, Yangzhou Women and Children Hospital Yangzhou China
4. Nanjing Drum Tower Hospital The Affiliated Hospital of Nanjing University Medicial School Nanjing China