1 Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266061, Shandong, China.
2 Department of Gastrointestinal Colorectal and Anal Surgery, The China-Japan Union Hospital of Jilin University, Changchun 130033, Jilin, China.
3 Department of Otolaryngology Head and Neck Surgery, Qingdao Municipal Hospital (Group), Qingdao 266071, Shandong, China. Electronic address: dugq2020@163.com.
4 Department of Clinical Laboratory, The Affiliated Hospital of Qingdao University, Qingdao 266061, Shandong, China. Electronic address: lunlmqd@163.com.