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) WARD C.,Prevalence of maternal smoking and environmental tobacco smoke exposure during pregnancy and impact on birth weight : retrospective study using Millennium Cohort,BMC Public Health,,,2007,7,,81,https://cir.nii.ac.jp/crid/1570854175929107584,