1. Department of Imaging, Yantai Yuhuangding Hospital, Yantai, Shandong, China (mainland)
2. Department of Intensive Care Unit (ICU), The Second Affiliated Hospital of Qingdao University, Qingdao, Shandong, China (mainland)
3. Department of Clinical Laboratory, People’s Hospital of Weifang, Weifang, Shandong, China (mainland)