铝作业工人尿中的高香草酸和香草扁桃酸水平均较高，且香草扁桃酸水平显著高于对照工人；
Both urine VMA and HVA levels were higher in the workers exposed to aluminum, and urine VMA level in the exposed was significantly higher than that in controls.
铝作业工人尿中的高香草酸和香草扁桃酸水平均较高，且香草扁桃酸水平显著高于对照工人；
Both urine VMA and HVA levels were higher in the workers exposed to aluminum, and urine VMA level in the exposed was significantly higher than that in controls.
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