?:authorAffiliation
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[\'Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China.\', \'Department of Cardiology, The Affiliated Suqian First People\'s Hospital of Nanjing Medical University, Suqian, 223800, Jiangsu, China.\', \'Department of Cardiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, 221002, Jiangsu, China. chaoqun1973@sina.com.\']
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