1. Department of Gastroenterology, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
2. Department of Pharmacy, Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei 050011, P.R. China
3. Department of Radiation Oncology, Affiliated Hospital of Hebei University, Baoding, Hebei 071000, P.R. China
4. Department of Neurology, Hebei General Hospital, Shijiazhuang, Hebei 050000, P.R. China
5. Department of Gastrointestinal Oncology, Qinhuangdao Fourth Hospital, Qinhuangdao, Hebei 066000, P.R. China
6. Department of Pediatrics, Traditional Chinese Medical Hospital of Hebei Province, Shijiazhuang, Hebei 050000, P.R. China