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) SOMMERFELD V.,Cryopreservation of bovine in vitro produced embryos using ethylene glycol in controlled freezing or vitrification,Cryobiology,,,1999,38,,95-105,https://cir.nii.ac.jp/crid/1573668924982561920,