Predictive Indicators of Early Fitness Club Membership Termination in Japan: A Cohort Study. (May 2017) - Kikuga, Nobumasa; Sawada, Susumu S.; Matsushita, Munehiro; Gando, Yuko; Watanabe, Natsumi; Hashimoto, Yuko; Nakata, Yoshio; Sloan, Robert A.; Blair, Steven N.; Fukushima, Noritoshi; Inoue, Shigeru