他回忆说2007年当之前的关于儿童死亡率的老报告发表的时候，健康指标和评估研究所团队就发布过类似的研究声明。
He recalls that the IHME team made similarly grand claims when its previous study on child mortality was unveiled in 2007.
研究者们从婴儿出生开始跟踪调查了在新泽西的519名儿童，对他们作了周期性健康和成长评估并同时采访了他们的家长。
The researchers had followed the subjects - 519 children in New Zealand - since birth, making periodic health and developmental assessments and interviewing their parents.
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