1. Center for Experimental Medicine, Lanzhou General Hospital, Lanzhou Military Command, Lanzhou, China.
2. Department of Infectious Diseases, Xijing Hospital, The Fourth Military Medical University, Xi'an, China.
3. Department of Colorectal and Anal Surgery, The First Hospital of Jilin University, Changchun, China.
4. Department of Nutriment, Lanzhou General Hospital, Lanzhou Military Command, Lanzhou, China.
5. Gansu Key Laboratory of Stem Cell and Gene Therapy, Lanzhou, China.