Does Laughter Predict Onset of Functional Disability and Mortality Among Older Japanese Adults? The JAGES Prospective Cohort Study 論文 Yudai Tamada・Kenji Takeuchi・Chikae Yamaguchi・Masashige Saito・Tetsuya Ohira・Kokoro Shirai・Katsunori Kondo ·2020-05-15 ·『Journal of Epidemiology』 31(5) pp. 301-307 doi:10.2188/jea.je20200051