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John Snow - a historical giant in epidemiologyA:請問XXX在嗎?? B:對不起,請你大聲一點... A:請問XXX在嗎??(更大聲) B:對不起,請你再大聲一點... A:請問XXX在嗎??(超大聲) B:很抱歉,好像有點干擾耶...你能不能再大聲一點我真的聽不到..... A:請問The life and times of Dr. John Snow (1813-1858), with multimedia pages including the complete text of On the Communication of Cholera. Created by the Department of Epidemiology, UCLA School of Public Health....
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