?:authorAffiliation
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[\'Taiwan Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan. Electronic address: yclin@cdc.gov.tw.\', \'Taiwan Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan.\', \'Hospital and Social Welfare Organizations Administration Commission, Ministry of Health and Welfare, Nantou, Taiwan.\', \'Department of Medical Affairs, Ministry of Health and Welfare, Taipei, Taiwan.\']
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