Point-of-use interventions to decrease contamination of drinking water: a randomized, controlled pilot study on efficacy, effectiveness, and acceptability of closed containers, Moringa oleifera, and in-home chlorination in rural South India

减少饮用水污染的终端干预措施：一项关于封闭容器、辣木和家庭氯化在印度南部农村地区的功效、有效性和可接受性的随机对照试点研究