@article{Kaori Sakurada2020JE20180249, title={Associations of Frequency of Laughter With Risk of All-Cause Mortality and Cardiovascular Disease Incidence in a General Population: Findings From the Yamagata Study}, author={Kaori Sakurada and Tsuneo Konta and Masafumi Watanabe and Kenichi Ishizawa and Yoshiyuki Ueno and Hidetoshi Yamashita and Takamasa Kayama}, journal={Journal of Epidemiology}, volume={30}, number={4}, pages={188-193}, year={2020}, doi={10.2188/jea.JE20180249} }