1. Departments of Cardiovascular Center and Geriatric Medicine, the first Hospital of Jilin University, Changchun 130021, China
2. Kosair Children's Hospital Research Institute, the Departments of Pediatrics, Radiation Oncology, the University of Louisville, Louisville, KY 40202, U.S.A.
3. Department of Internal Medicine, People's Hospital of Jilin Province, Changchun 130021, Jilin, China
4. Department of Biomedical Sciences, New York Institute of Technology College of Osteopathic Medicine, Old Westbury, NY 11568, U.S.A.