Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University, Keai Long-Term Care Health Facility for the Elderly, Yuai Long-Term Care Health Facility for the Elderly, Kouseien Long-Term Care Health Facility for the Elderly, Tamagushi-sumire-en Long-Term Care Health Facility for the Elderly, Tsukumo Long-Term Care Health Facility for the Elderly, Sayamanosato Long-Term Care Health Facility for the Elderly, Sakuragawa Long-Term Care Health Facility for the Elderly, Yukyuen Long-Term Care Health Facility for the Elderly, Yukyuen Long-Term Care Health Facility for the Elderly, Kuwanomi Long-Term Care Health Facility for the elderly, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine, Osaka Metropolitan University - Graduate School of Medicine and Clinical Epidemiology Research Center, Medical Group (Medical Co. LTA)