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[1]
Department of Gastroenterology, Gaochun People's Hospital of Nanjing, Nanjing, China
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[2]
Department of Gastroenterology, Jingjiang People's Hospital, Taizhou, China
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[3]
Department of Gastroenterology, Kunshan Qiandeng people's Hospital, Kunshan fifth People's Hospital, Suzhou, China
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[4]
Department of Gastroenterology, Suzhou Ninth People's Hospital, Suzhou Ninth Hospital Affiliated to Soochow University, Suzhou, China