1. Department of Epidemiology and Public HealthKanazawa Medical UniversityJapan
2. Department of Social and Environmental HealthKanazawa Medical UniversityJapan
3. School of Nursing, Kanazawa Medical UniversityJapan
4. Faculty of MedicineSchool of Health Science, Kanazawa UniversityJapan
5. Faculty of MedicineSchool of Nursing, Toyama UniversityJapan