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采用血液中25羟胆钙化醇(以下简称25-OHD_3)的浓度来评价人体维生素D的营养状况,在我国尚未见报道。我们于1983年9月开始,在北京市宣武区妇幼保健院调查了54名1～8月龄母乳喂养的婴儿。随机将婴儿分成两组:一组鼓励多晒太阳;另一组为自然对照。所有对象都未补充过维生素D,
The use of 25 hydroxycholecalciferol in the blood (hereinafter referred to as 25-OHD_3) to assess the nutritional status of human vitamin D has not been reported in our country. We started in September 1983 and investigated 54 babies aged from 1 to 8 months of breastfeeding in the Xuanwu District Maternal and Child Health Hospital in Beijing. Infants were randomly divided into two groups: one to encourage more sun exposure; the other for natural controls. All subjects have not been vitamin D,