?:authorAffiliation
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[\'Division of Gastroenterology, Department of Internal Medicine, Kyung Hee University College of Medicine, Seoul, Korea.\', \'Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.\', \'Department of Internal Medicine, Chonnam National Medical School, Gwangju, Korea.\', \'Department of Internal Medicine, Hallym University College of Medicine, Chuncheon, Korea.\', \'Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, Korea.\', \'Division of Gastroenterology, Department of Internal Medicine, CHA University School of Medicine, Pocheon, Korea.\', \'Division of Gastroenterology, Department of Internal Medicine, University of Ulsan College of Medicine, Seoul, Korea.\', \'Department of Internal Medicine, Inje University College of Medicine, Busan, Korea.\', \'Department of Internal Medicine, Korea University College of Medicine, Seoul, Korea.\']
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