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Keizo MIYAZAKI
Sendai Municipal Institute of Health Department of Bacteriology, Tohoku University School of Medicine
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Akira TSUNODA
Sendai Municipal Institute of Health Department of Bacteriology, Tohoku University School of Medicine
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Mitsuro KUMASAKA
Sendai Municipal Institute of Health Department of Bacteriology, Tohoku University School of Medicine
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Nakao ISHIDA
Sendai Municipal Institute of Health Department of Bacteriology, Tohoku University School of Medicine