1. Department of Medical Education and General Practice Osaka Metropolitan University, Graduate School of Medicine Osaka Japan
2. Office of Institutional Research Osaka Metropolitan University, Faculty of Medicine Osaka Japan
3. Center for Clinical Research and Innovation Osaka Metropolitan University Hospital Osaka Japan
4. Department of Infection Control and Prevention Osaka Metropolitan University Hospital Osaka Japan
5. Department of Infection Control Science Osaka Metropolitan University, Graduate School of Medicine Osaka Japan
6. Department of Respiratory Medicine Osaka Metropolitan University, Graduate School of Medicine Osaka Japan
7. Department of Traumatology and Critical Care Medicine Osaka Metropolitan University, Graduate School of Medicine Osaka Japan
8. Department of Nursing Osaka Metropolitan University Hospital Osaka Japan
9. Department of Cardiovascular Surgery Osaka Metropolitan University, Graduate School of Medicine Osaka Japan