?:authorAffiliation
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[\'The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China.\', \'Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, 730000, China.\', \'Key Laboratory for Gastrointestinal Diseases of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, 730000, China.\', \'Department of Gastroenterology, The First Hospital of Lanzhou University, Lanzhou, 730000, China. wangyuping@lzu.edu.cn.\', \'Key Laboratory for Gastrointestinal Diseases of Gansu Province, The First Hospital of Lanzhou University, Lanzhou, 730000, China. wangyuping@lzu.edu.cn.\']
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