We conducted a cross-sectional study in Embu, São Paulo, Brazil, as the Brazilian component of a multicountry survey on abuse in the family environment.

我们在巴西圣保罗恩布进行了横断面研究，即家庭滥用体罚多国调查的巴西调查部分。

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Multicountry negotiations on a fissile-materials ban stalled more than a decade ago.

WSJ: U.S. and Russia Push Arms-Control Talks Forward