About the Authors
- Koichi Ushizawa
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Affiliation Reproductive Biology Research Unit, Division of Animal Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
- Toru Takahashi
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* E-mail: tatoru@affrc.go.jp
Affiliation Reproductive Biology Research Unit, Division of Animal Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
- Misa Hosoe
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Affiliation Reproductive Biology Research Unit, Division of Animal Sciences, National Institute of Agrobiological Sciences, Tsukuba, Ibaraki, Japan
- Keiichiro Kizaki
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Affiliation Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
- Kazuyoshi Hashizume
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Affiliation Department of Veterinary Medicine, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: KU TT KH. Performed the experiments: KU TT. Analyzed the data: KU TT. Contributed reagents/materials/analysis tools: KU TT MH KK KH. Wrote the paper: KU KH.