When Are We Most Vulnerable to Temperature Variations in a Day?

• Chao-Yu Guo,

  Affiliations Division of Biostatistics, Institute of Public Health, National Yang Ming University, Taipei, Taiwan, Aging and Health Research Center, National Yang Ming University, Taipei, Taiwan, Biostatistical Consulting Center, National Yang Ming University, Taipei, Taiwan

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• Wen-Chi Pan,

  Affiliations Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, Department of Epidemiology, School of Public Health, Brown University, Providence, Rhode Island, United States of America

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• Mu-Jean Chen,

  Affiliations Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan, National Environmental Health Research Center, National Health Research Institutes, Miaoli, Taiwan

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• Chen-Wei Tsai,

  Affiliation Division of Biostatistics, Institute of Public Health, National Yang Ming University, Taipei, Taiwan

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• Nai-Tzu Chen,

  Affiliation Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan

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• Huey-Jen Su

  * E-mail: hjsu@mail.ncku.edu.tw

  Affiliation Department of Environmental and Occupational Health, College of Medicine, National Cheng Kung University, Tainan, Taiwan

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