Corresponding Author

State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China

Correspondence

Yi Zhang, Center for Brain Imaging, School of Life Science and Technology, Xidian University, Xi’an, Shaanxi 710126, China.

Email: yizhang@xidian.edu.cn

Guangbin Cui, Department of Radiology, Tangdu Hospital, Fourth Military Medical University, Xi’an, Shaanxi 710126, China.

Email: liujixin@xidian.edu.cn

Yongzhan Nie, State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China.

Email: yongznie@fmmu.edu.cn