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Kei Nagai
Department of Nephrology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan Department of Nephrology, Hitachi General Hospital, Hitachi, Japan
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Toshimi Sairenchi
Medical Science of Nursing, Dokkyo Medical University School of Nursing, Shimotsuga, Japan
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Kunihiro Yamagata
Department of Nephrology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
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Kazumasa Yamagishi
Department of Public Health, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan
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Hiroyasu Iso
Institute of Global Health Policy Research (iGHP), National Center for Global Health and Medicine, Tokyo, Japan
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Fujiko Irie
Tsuchiura Public Health Center of Ibaraki Prefectural Government, Tsuchiura, Japan