1. Department of Hematology, The People’s Hospital of Tai Zhou, Nanjing Medical University, Nanjing, People’s Republic of China
2. The People’s Hospital of Zhang Dian, Jiangyan, People’s Republic of China
3. Department of General Practice, Anhui Medical University, Hefei, People’s Republic of China
4. Department of Epidemiology and Statistics, School of Public Health, Medical College, Zhejiang University, Hangzhou, People’s Republic of China
5. School of Health, Brooks College, Sunnyvale, CA, USA