1 The First Clinical Medical College of Gansu University of Chinese Medicine, Gansu Provincial Hospital, Gansu, 730000, China. Electronic address: gschy333@163.com.
2 Department of Radiology, Gansu Provincial Hospital, Gansu, 730000, China.
3 The First Clinical Medical College of Gansu University of Chinese Medicine, Gansu Provincial Hospital, Gansu, 730000, China.
4 Department of Radiotherapy, Gansu Provincial Hospital, Gansu, 730000, China.