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2. Japan Dental Association. Manual for oral frailty at dental clinics. Available from: https://www.jda.or.jp/dentist/oral_flail/pdf/manual_all.pdf. Accessed 13 January 2022.
3. Association between oral, social, and physical frailty in community-dwelling older adults;Hironaka;Arch Gerontol Geriatr,2020
4. Association between oral frailty and dietary variety among community-dwelling older persons: a cross-sectional study;Hoshino;J Nutr Health Aging,2021
5. Association between oral frailty and nutritional status among community-dwelling older adults: the Takashimadaira study;Iwasaki;J Nutr Health Aging,2020