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Jungo Oe
Hiroshima University, Graduate School of Education
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Sachio Usui
Hiroshima University, Faculty of Integrated Arts and Sciences
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Ken Okihara
Hiroshima University, Graduate School of Education
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Mitsuhisa Shiokawa
Prefectural Hiroshima University, Faculty of Health and Welfare
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Akira Kan
Hiroshima International University, Faculty of Health Sciences
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Toshihito Kajiyama
Chugoku Regional Police Academy
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Takashi Kurokawa
Hiroshima University, Graduate School of Education