Objective:To explore the expression changes in proliferating cell nuclear antigen (PCNA)in normal oral mucosa and recurrent aphthous ulcers (RAU).是什么意思_Objective:To explore the expression changes in proliferating cell nuclear antigen (PCNA)in normal oral mucosa and recurrent aphthous ulcers (RAU).在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句