Ministry of Health, Labour, and Welfare. Hitopapirōmauirusukansenshō (HPV wakuchin) fukuhan’nō tsuikachōsa kekka ni tsuite [On the Results of Additional Investigation of the Side Effects of Human Papillomavirus Infection (HPV Vaccine)].
http://www.mhlw.go.jp/bunya/kenkou/kekkaku-kansenshou28/chousa/index.html

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