Objective: To investigate the content of trace element in serum and the condition of cell-mediated immunity in patients with recurrent aphthous ulceration (RAU).
目的：探讨复发性口腔溃疡(RAU)患者血清中微量元素含量及细胞免疫功能状态。
Objective: To investigate the content of trace element in serum and the condition of cell-mediated immunity in patients with recurrent aphthous ulceration (RAU).
目的：探讨复发性口腔溃疡(RAU)患者血清中微量元素含量及细胞免疫功能状态。
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