1. Department of Medicine Hualien Armed Forces General Hospital Hualien Taiwan
2. Departments of Dentistry Tri‐Service General Hospital Taipei Taiwan
3. Graduate Institute of Dental Science National Defense Medical Center Taipei Taiwan
4. School of Dentistry National Defense Medical Center Taipei Taiwan
5. Institute of Statistics National Chiao Tung University Hsinchu City Taiwan
6. Biotechnology R and D Center National Taiwan University Hospital Hsinchu Branch Hsinchu County Taiwan
7. Department of Critical Care Medicine Taipei Tzu‐Chi Hospital New Taipei City Taiwan
8. Departmnet of Internal Medicine Tri‐Service General Hospital, National Defense Medical Center Taipei Taiwan
9. Department of Preventive Medicine Northwestern University Feinberg School of Medicine Chicago Illinois USA