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Yasue Takeuchi
Chiba Prefectural Serum Institute, Chiba
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Kazuyuki Nakamura
Nagano Research Institute for Health and Pollution, Nagano
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Mikio Nakayama
National Institute of Health, Tokyo
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Suwicha Kupradinunt
National Institute of Health, Nongtabri
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Fumio Nishikawa
Department of Microbiology and Immunology, Nippon Medical School, Tokyo
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Hiroshi Suzuki
Department of Microbiology and Immunology, Nippon Medical School, Tokyo
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Masakazu Takahashi
Department of Hygiene and Public Health, Nippon Medical School, Tokyo
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Yukio Yamazi
Department of Microbiology and Immunology, Nippon Medical School, Tokyo
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Keiko Takahashi
Department of Microbiology and Immunology, Nippon Medical School, Tokyo
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Boonyong Pongprot
Department of Family Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai
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Somboon Supasert
Department of Family Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai
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Jiraporn Supawadee
Departmeng of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai
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Vicharn Vithayasai
Departmeng of Microbiology, Faculty of Medicine, Chiang Mai University, Chiang Mai
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Damri Damrongsak
Department of Pediatrics, Faculty of Medicine, Chiang Mai University, Chiang Mai
