再次发作性口腔溃疡 recurrent orl ulcer ; ROU ; recurrent oral ulceration ; recurrentorlulcertion
再次发作性阿弗它溃疡 recurrentphthousulcer ; RU
正文：问：鼻癌化疗后如何防再次发作？
Ask: After nose cancer changes cure how to prevent recrudesce?
而选择不规范的治疗方法，治疗起来费时费力，且有再次发作的可能。
The choice of non-standard treatment, treatment time and effort, and the possibility of recurrence.
这种药物用干细胞来增强和重建受损的心脏肌肉和血管，防止心脏病再次发作。
It USES the cells to fortify and rebuild damaged heart muscles and blood vessels in an attempt to prevent further attacks.
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