Department of Internal medicine, Clinical Medical college of Yangtze University, Jingzhou 434000, Hubei Province, China
Department of Gastroenterology, No. 1 Hospital Affiliated to Yangtze University, Jingzhou 434000, Hubei Province, China
The second Hospital of Jingzhou, Jingzhou 434000, Hubei Province, China
Department of Respiratory, No.1 Hospital Affiliated to Yangtze University, Jingzhou 434000, Hubei Province, China
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