您這有點越描越黑了，每年都接種疫苗的兒童比隻在研究當年接種疫苗的兒童更容易感染流感，這個已經是非常大的問題了

來源: ephd 於 2015-12-01 11:19:54 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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