Serum 25-hydroxyvitamin D, 1,25-dihyroxyvitamin D and parathyroid hormone concentrations in school-aged children by sex and age group1.
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1Values are geometric mean ± geometric SD. Note: Geometric SD is a factor, not a quantity. Powers of the geometric SD can be either multiplied by (or divided into) the geometric mean to determine the set of values that lie n geometric SDs from the mean.
创建时间：
2015-12-02
