1. Department of Oncology, People’s Hospital of Rizhao, Rizhao, Shandong, China (mainland)
2. Department of Thyroid Surgery, The Affiliated Hospital of Qingdao University, Qingdao, Shandon, China (mainland)
3. Department of Internal Medicine, People’s Hospital of Zhangqiu, Jinan, Shandong, China (mainland)
4. Department of Pathology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China (mainland)