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) Charlotte A. Hobbs and Stephanie L. Sherman and Ping Yi and Sarah E. Hopkins and Claudine P. Torfs and R. Jean Hine and Marta Pogribna and Rima Rozen and S. Jill James,Polymorphisms in Genes Involved in Folate Metabolism as Maternal Risk Factors for Down Syndrome,The American Journal of Human Genetics,0002-9297,Elsevier BV,2000-09,67,3,623-630,https://cir.nii.ac.jp/crid/1362262943532341632,https://doi.org/10.1086/303055