Nature記事
What polio’s UK presence means for global health (nature.com)
ポリオ根絶計画
<924A8CFB2D8BB388E72E736D64> (jst.go.jp)
三種混合ワクチン
Abstract: Symptomatic Post Vaccinal Excretion of Measles in the Nasopharynx: a Report of Nine Cases (44th Annual Meeting) (confex.com)