本文还讨论了该病的致病原因和预防措施。
This paper also discussed the pathogenic factors and protective measures.
在澳洲,吸烟是可避免的单一致死致病原因。
Smoking is the largest single preventable cause of death and disease in Australia.
医生从未知道真正的致病原因,但最后还是把它归结为超负荷的免疫系统不能再支撑我的身体。
Doctors never really knew what causes it, but finally put it down to an overloaded immune system.
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