Karasawa, M.; Tamaura, Y.; Akamatsu, R.; Eda, M.; Fukasawa, H.; Hokazono, M.; Watanabe, S.; Fujiwara, K.; Nishimura, K.; Sakai, M. Understanding of Frailty Amid Japanese Elderly People Who Participated in Preventive Care Events and Characteristics of Those Lacking Understanding of Frailty. Gerontology and Geriatrics 2022, 70, 128-133.