Objective To study the impact of 18 possible risk factors in severe epidemic encephalitis B in order to provide the evidence for control and prevention.
目的为了探讨各种危险因素对重型乙型脑炎的影响，为今后预防和控制提供依据。
Objective To study the impact of 18 possible risk factors in severe epidemic encephalitis B in order to provide the evidence for control and prevention.
目的为了探讨各种危险因素对重型乙型脑炎的影响，为今后预防和控制提供依据。
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