[The associations of frailty with regular participation in physical, cultural, and community social activities among independent elders in Japan]. 論文 Yasuyo Yoshizawa・Tomoki Tanaka・K Takahashi・M. Fujisaki・Katsuya Iijima ·2019-01-01 ·『PubMed』 66(6) pp. 306-316 doi:10.11236/jph.66.6_306