1. Clinical laboratory, Yantai Yuhuangding Hospital, Shandong, China
2. Department of Stomatology, Yantaishan Hospital, Yantai, Shandong, China
3. Spinal Surgery, The Affiliated Central Hospital of Qingdao University, Qingdao, Shandong, China
4. Spinal Surgery, The Tumor Hospital of Qingdao City, Qingdao, Shandong, China
5. Digestive Internal Medicine, The People’s Hospital of Zhangqiu Area, Jinan, Shandong, China
6. Department of Oncology, People’s Hospital of Rizhao, Rizhao, Shandong, China
7. Department of Stomatology, Yantai Yuhuangding Hospital, Shandong, China