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) Alan S. Ryan,The Resurgence of Breastfeeding in the United States,Pediatrics,0031-4005,American Academy of Pediatrics (AAP),1997-04-01,99,4,e12-e12,https://cir.nii.ac.jp/crid/1363670319965930624,https://doi.org/10.1542/peds.99.4.e12