1. Graduate School, Tianjin University of Traditional Chinese Medicine Tianjin China
2. Department of Cardiovascular Medicine Tianjin Chest Hospital Tianjin China
3. Cardiac Surgical Intensive Care Unit Tianjin Chest Hospital Tianjin China
4. Public Health Science and Engineering College, Tianjin University of Traditional Chinese Medicine Tianjin China
5. Nursing Department Tianjin Chest Hospital Tianjin China