1. Department of Innovative Research and Education for Clinicians and Trainees (DiRECT)Fukushima Medical University Hospital Fukushima City Fukushima Japan
2. Center for Innovative Research for Communities and Clinical Excellence (CiRC2LE)Fukushima Medical University Fukushima City Fukushima Japan
3. Department of Healthcare Epidemiology, School of Public Health in the Graduate School of MedicineKyoto University Kyoto Japan
4. Department of UrologyTokyo Women's Medical University Tokyo Japan
5. Department of Clinical Epidemiology, Graduate School of MedicineFukushima Medical University Fukushima Japan
6. Department of Emergency MedicineInternational University of Health and Welfare Narita City Chiba Japan