Department of Gastroenterology,Affiliated Shandong Provincial Hospital of Shandong University,Ji'nan 250012,China;
Department of Gastroenterology,Affiliated Shandong Provincial Hospital of Shandong University,Ji'nan 250012,China;
School of Nursing,Binzhou Vocational College,Binzhou 256603,China;
Department of Gastroenterology,Zhangqiu People's Hospital,Zhangqiu 250200,China;
Department of Gastroenterology,Zhangqiu People's Hospital,Zhangqiu 250200,China;
Department of Gastroenterology,General Hospital of Ningxia Medical University,Yinchuan 750004,China;
Department of Medical Oncology,Shandong Cancer Hospital and Institute,Ji'nan 250117,China;