期刊
ARCHIVES OF DISEASE IN CHILDHOOD
卷 88, 期 1, 页码 18-19出版社
BRITISH MED JOURNAL PUBL GROUP
DOI: 10.1136/adc.88.1.18
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Parental knowledge of their students' backpack weight and contents was assessed by identifying 188 students who carried backpacks weighing at least 10% of their body weights through a survey of 745 students in three elementary schools. Most parents (96%) had never checked their child's backpack weight; 34% had never checked the backpack contents.
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