*taisuke minami1, Takuto Ikeda2, Honoka Karatani1, Sho Sakamoto3, Taisei Nanba2, Sena Matsuura2, Isaku Kurotori4, Takashi Kimura4, Eri Maeda4, Akiko Tamakoshi4
(1. Faculty of Letters, Hokkaido University, 2. Hokkaido University Institute for the Advancement of Higher Education, 3. School of Medicine, Hokkaido University., 4. Department of Public Health, Hokkaido University Graduate School of Medicine)
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