The conclusion is that pneumococci are correlative with recurrent aphthous ulcers and their pathogenesis has also been discussed.
为肺炎链球菌与复发性阿弗他溃疡有关，并进一步讨论了肺炎链球菌
致病机制。
The conclusion is that pneumococci are correlative with recurrent aphthous ulcers and their pathogenesis has also been discussed.
为肺炎链球菌与复发性阿弗他溃疡有关，并进一步讨论了肺炎链球菌致病机制。
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