Kawabata Nami, Iida Tadayuki, Miyaguchi Hideki, Kunishige Masafumi, Ishizuki Chinami, Hashimoto Hiroko, Ito Yasuhiro, Harada Toshihide. Influence of a program combining amusement and exercise on subjective well-being: six-month intervention study with a complex-type program for community-dwelling elderly subjects. Open Journal of Preventive Medicine. 2018. 8. 266-281