article_metadata: Masayuki Kashima
article_metadata: 10.3389/fnut.2021.547512
article_metadata: Front Nutr
article_metadata: 2021 Apr 14;8:547512.
article_metadata: acute illness frailty hospitalization ninjin'yoeito quality of life
article_metadata: CC BY
article_metadata: https://pubmed.ncbi.nlm.nih.gov/33937301/
article_metadata: Case Reports
article_metadata: PMC8079971
article_metadata: 33937301
article_metadata: Case Report: Ninjin'yoeito May Improve Quality of Life After Hospitalization for Acute Illness in Patients With Frailty
article_metadata: 2021