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Tadahiro INOUE
Department of Veterinary Obstetrics, Faculty of Veterinary Medicine, Hokkaido University
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Yoh-Ichi MIYAKE
Department of Veterinary Obstetrics, Faculty of Veterinary Medicine, Hokkaido University
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Harumichi YAMANAKA
National Institute of Animal Health
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Keiichiro KAWATA
Department of Veterinary Obstetrics and Gynecology, Scholl of Veterinary Medicine, Rakunogakuen University
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Tsune ISHIKAWA
Department of Veterinary Obstetrics, Faculty of Veterinary Medicine, Hokkaido University