1. Department of Thoracic Surgery, Affiliated People’s Hospital of Inner Mongolia Medical University
2. Geriatric Medical Center, Inner Mongolia People’s Hospital, Hohhot, China
3. Department of Dispensary, Affiliated Hospital of Inner Mongolia Medical University
4. Department of Emergency, People’s Hospital of Inner Mongolia Autonomous Region
5. Department of Pharmacy, Affiliated People’s Hospital of Inner Mongolia Medical University, Hohhot, P.R.China
6. Department of Cardiovascular Medicine, First Affiliated Hospital of Baotou Medical College, Baotou, P.R.China