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) ,Reduction of the incidence of polyspermic penetration into porcine oocytes by pretreatment of fresh spermatozoa with adenosine and a transient co-incubation of the garnetes with caffeine,Reproduction 128(6),,,2004,,,789-800,https://cir.nii.ac.jp/crid/1010000781883825674,