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测定了济南市健康孕妇及新生儿脐血中铜/锌等8种元素比值,并建立了本地区以上微量元素比值的正常范围.
The ratio of Cu / Zn in healthy pregnant women and neonatal umbilical cord blood in Jinan city was measured and the normal range of the ratio of trace elements in the area was established.