CONCLUSION: The hair zinc level might be adopted as a biological monitoring index under certain circumstances.

结论：在一定条件下，发锌水平可以作为生物监测的指标。

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Conclusion: PA was an allergen, the specific immunoglobulin and serum zinc may choiced as an index of biological monitoring for chronic exposed to PA.

结论：PA是一种致敏原，建议将特异性免疫球蛋白和血清锌作为PA慢性接触的一种生物监测指标。

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