Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hannah Blencowe and Simon Cousens and Doris Chou and Mikkel Oestergaard and Lale Say and Ann-Beth Moller and Mary Kinney and Joy Lawn,Born Too Soon: The global epidemiology of 15 million preterm births,Reproductive Health,1742-4755,Springer Science and Business Media LLC,2013-11,10,S1,S2,https://cir.nii.ac.jp/crid/1361137044575638912,https://doi.org/10.1186/1742-4755-10-s1-s2