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测定了呼和浩特市区蒙、汉、回２１２例９岁健康儿童头发中Ｚｎ、Ｆｅ、Ｃｕ、Ｍｇ、Ｃａ元素的含量，结果表明呼和浩特市区９岁健康儿童头发中上述５种元素含量存在民族及性别差异。
The contents of Zn, Fe, Cu, Mg and Ca in hair of 212 healthy 9-year-old children in Mongolia, Han and Uigur were measured. The results showed that the contents of the above five elements in the hair of 9-year-old healthy children in Hohhot range from ethnic Gender differences.