Assessing the effectiveness of an app-based child unintentional injury prevention intervention for caregivers of rural Chinese preschoolers: protocol for a cluster randomized contr... by Jieyi He, Wanhui Wang, Peishan Ning, Peixia Cheng, Jie Li, Ming Zheng, Shujuan Yuan, Lei Yang, Youyou Wu, Huiying Zong, David C. Schwebel, Yang Yang, Guoqing Hu

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