Institution: | 1.Department of Oncology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China;2.Department of Quality Control Division, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China;3.Department of Operating Room, Affiliated Hospital of Weifang Medical University, Weifang, Shandong 261031, P.R. China |