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chang qi bu gai cai jian xiao
Pages: 20
Year: Issue:  3
Journal: Pictorial of Physical Education and Health

Abstract: <正> 补钙必须长期进行,因为骨量的丢失是一个漫长的过程,同样,补钙也不可能在一段时间内就一劳永逸。由于人体不能储存过量的钙,所以应该每日均衡补钙。空腹服钙吸收比率低,应该
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