The aetiology of RA is not clear.
类风湿关节炎的病因目前尚不清楚。
The aetiology of AD remains unknown and as yet, there is no known cure.
由于AD发病机理十分复杂，迄今为止尚不清楚，因此尚无理想的防治药物问世。
Objective To study the condition of drug fast and changes of aetiology of blood infected.
目的了解血液感染的病原学变化及耐药状况。
Objective To study the condition of drug fast and changes of aetiology of blood infected.
目的了解血液感染的病原学变化及耐药状况。
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