著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) CHRISTENSEN B,"Changes of the immunological patterns against measles, mumps and rubella : a vaccination programme studied 3 to 7 years after the introduction of a two-dose schedule",Vaccine,,,1991,9,,326-329,https://cir.nii.ac.jp/crid/1570009751273066752,https://doi.org/10.1016/0264-410x(91)90058-e