1. Department of Nursing; Tokyo Metropolitan Police Hospital; Tokyo Japan
2. Department of Plastic and Reconstructive Surgery; Kyorin University School of Medicine; Tokyo Japan
3. Department of Epidemiology Infectious Disease Control and Prevention, Institute of Biomedical and Health Sciences; Hiroshima University; Hiroshima Japan
4. Department of Orthopaedic Surgery; Kyorin University School of Medicine; Tokyo Japan
5. Department of Anesthesiology; Tokyo Women's Medical University; Tokyo Japan
6. Department of Orthopaedic Surgery; Tokyo Metropolitan Police Hospital; Tokyo Japan
7. Department of Nursing; Kyorin University Hospital; Tokyo Japan