@article{Satomi Ikeda2021JE20190140, title={Longitudinal Trends in Blood Pressure Associated With the Frequency of Laughter: The Circulatory Risk in Communities Study (CIRCS), a Longitudinal Study of the Japanese General Population}, author={Satomi Ikeda and Ai Ikeda and Kazumasa Yamagishi and Miyuki Hori and Sachimi Kubo and Mizuki Sata and Chika Okada and Mitsumasa Umesawa and Tomoko Sankai and Akihiko Kitamura and Masahiko Kiyama and Tetsuya Ohira and Takeshi Tanigawa and Hiroyasu Iso}, journal={Journal of Epidemiology}, volume={31}, number={2}, pages={125-131}, year={2021}, doi={10.2188/jea.JE20190140} }