Physical Activity and Screen-Time Viewing Among Elementary School–Aged Children in the United States From 2009 to 2010

出版年份 2013 全文链接

标题

作者

关键词

出版物

Volume 167, Issue 3, Pages 223

出版商

American Medical Association (AMA)

发表日期

2013-01-09

DOI

10.1001/2013.jamapediatrics.122

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