- Correspondence to Prof. Pei-Rong Ding, Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China; ; Prof. Zhi-Zhong Pan, Department of Colorectal Surgery, Sun Yat-sen University Cancer Center, Guangzhou, China;
- Received June 2, 2020
- Revised January 12, 2021
- Accepted January 16, 2021
- First published February 9, 2021.
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