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Takeshi Sakai
Division of Bacteriology, Nara Prefectural Institute for Hygiene and Environment, Japan
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Sumiko Tanabe
Division of Bacteriology, Nara Prefectural Institute for Hygiene and Environment, Japan
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Misao Hashida
Division of Bacteriology, Nara Prefectural Institute for Hygiene and Environment, Japan
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Yoshiteru Kitahori
Division of Bacteriology, Nara Prefectural Institute for Hygiene and Environment, Japan