1. Department of General Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, People’s Republic of China
2. Fujian Hypertension Research Institute, Fuzhou, Fujian 350005, People’s Republic of China
3. Department of Geriatric Medicine, The First Affiliated Hospital of Fujian Medical University, Fuzhou, Fujian 350005, People’s Republic of China