@article{Kei Hayashi2016JE20150196, title={Laughter is the Best Medicine? A Cross-Sectional Study of Cardiovascular Disease Among Older Japanese Adults}, author={Kei Hayashi and Ichiro Kawachi and Tetsuya Ohira and Katsunori Kondo and Kokoro Shirai and Naoki Kondo}, journal={Journal of Epidemiology}, volume={advpub}, number={ }, pages={JE20150196}, year={2016}, doi={10.2188/jea.JE20150196} }