2015-02-21から1日間の記事一覧
@takeshou: RT @tweeting_drtaka: ワクチンによって、各州のポリオ感染がいかに減じたかの図。こういう広報が必要か。RT Here's what happened to U.S. infection rates once vaccines were introduced: …2015-02-20 22:31:48 via Twitter for Android Table…
@takeshou: RT @tweeting_drtaka: ワクチンによって、各州のポリオ感染がいかに減じたかの図。こういう広報が必要か。RT Here's what happened to U.S. infection rates once vaccines were introduced: …2015-02-20 22:31:48 via Twitter for Android Table…