在婴儿最初6个月内没有获得纯母乳喂养，导致每年100多万可避免的婴幼儿死亡。
A lack of exclusive breastfeeding during the first six months of life contributes to over a million avoidable child deaths each year.
来自加州大学圣迭戈分校的卡迪克•穆拉里达兰和世界银行的万可太实•桑德拉拉曼，在印度安德拉邦的300所国立学校中试验了这个想法。
Two researchers, Karthik Muralidharan of the University of California at San Diego and Venkatesh Sundararaman of the World Bank, tested that idea in 300 state-run schools in Andhra Pradesh in India.
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