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Akira CHIBA
Department of Biology, The Nippon Dental University School of Life Dentistry at Niigata
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Ryuhei HONMA
Niigata Prefecture Wild Bird Conservation Group
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Michio TOYAMA
Department of Radiology, The Nippon Dental University School of Life Dentistry at Niigata
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Mitsuhiro WATANABE
Department of Radiology, The Nippon Dental University School of Life Dentistry at Niigata