Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) OIKAWA T.,Repeated induction program of superovulation in cattle throughout oneyear using a progesterone device and porcine (p) FSH,Therio,,,1998,49,1,382,https://cir.nii.ac.jp/crid/1573105976014688640,https://doi.org/10.1016/s0093-691x(98)90735-x