1. Department of Ultrasound, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China (mainland)
2. Department of Lymphoma, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China (mainland)
3. Department of Nuclear Medicine, The Affiliated Hospital of Qingdao University, Qingdao, Shandong, China (mainland)