Affiliation: | Feng-Yun Hao, Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao 266555, Shandong Province, ChinaYan-Li Wang, Department of Operating Room, The Affiliated Hospital of Qingdao University, Qingdao 266555, Shandong Province, ChinaShao-Ming Li, Ling-Fa Xue, Department of Oral and Maxillofacial Surgery, The Affiliated Hospital of Qingdao University, Qingdao 266555, Shandong Province, China |