1. Department of Pathology, The First Hospital of China Medical University, Shenyang 110001, China
2. Department of Pathology, The People’s Hospital of Liaoning Province, Shenyang 110016, China
3. Department of Ultrasound, The First Hospital of China Medical University, Shenyang 110001, China
4. Department of Pathology, Beijing Hospital, National Geriatric Center, Beijing 100730, China
5. Department of Pathology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China