目的 分析牙周源性牙周牙髓联合病变患牙根管内口腔常见可疑致病菌的检出情况。

Objective To investigate the prevalences of common suspected pathogens in root canals from combined periodontalendodontic lesions of periodontal origin.

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感染源初步调查显示，病人出现症状的一周前，其住所的周边地带曾突然出现过大量鸡只死亡。

Initial investigations into the source of his infection suggest a number of sudden chicken deaths occurred around the case's house a week before onset.

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上一周，Romero公布了最具影响力的100个新闻媒体twitter消息源的名单。

Last week, Romero released a list of the top 100 most influential news-media Twitter feeds.

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