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1.Methods Red cell pyrimidine 5′ nucleotidase, blood lead and urine lead levels, free erythrocyte protoporphyrin (FEP), zinc protoporphyrin (ZPP) and urine δ aminolevulinic acid levels were determined in 157 lead exposed workers and 30 non exposed healthy people.
方法　连续性收集15 7名铅接触工人及 30名健康对照组的血标本 ,同时测定红细胞嘧啶 5′核苷酸酶 (P5′N)的活性、血铅、红细胞游离原卟啉 (FEP)、锌卟啉 (ZPP)、尿铅、尿δ 氨基酮戊酸 (δ ALA)。收藏指正
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