Nishiyama C, Iwami T, Kawamura T, Ando M, Kajino K, Yonemoto N, Fukuda R, Yuasa H, Yokoyama H, Nonogi H : Effectiveness of simplified chest compression-only CPR training program with or without preparatory self-learning video: A randomized controlled trial. Resuscitation. 2009; 80: 1164-1168.