Detection of SARS‐CoV‐2 by RT‐PCR in anal from patients who have recovered from coronavirus disease 2019. Issue 10 (3rd June 2020) - Liu, Juan; Xiao, Yong; Shen, Yuan; Shi, Chao; Chen, Yujun; Shi, Ping; Gao, Yumeng; Wang, Yiqing; Lu, Bing