@article{oai:obihiro.repo.nii.ac.jp:00002297,
 author = {Natural, Nelson Galan and Sawamukai, Yutaka and Sato, Kunitada and Ono, Hitoshi and Miyake, Masaru},
 issue = {3},
 journal = {帯広畜産大学学術研究報告. 第I部, Research bulletin of Obihiro Zootechnical University. Series I},
 month = {Nov},
 note = {application/pdf},
 pages = {643--653},
 title = {Induction of Estrus with PGF 2-Alpha and Associated Changes in Peripheral Blood Serum progesterone and Estrogen Concentrations in Dairy Cattle},
 volume = {10},
 year = {1977}
}