RT Journal Article SR Electronic T1 Six-month follow-up of gut microbiota richness in patients with COVID-19 JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 222 OP 225 DO 10.1136/gutjnl-2021-324090 VO 71 IS 1 A1 Yanfei Chen A1 Silan Gu A1 Yunbo Chen A1 Haifeng Lu A1 Ding Shi A1 Jing Guo A1 Wen-Rui Wu A1 Ya Yang A1 Yongtao Li A1 Kai-Jin Xu A1 Cheng Ding A1 Rui Luo A1 Chenjie Huang A1 Ling Yu A1 Min Xu A1 Ping Yi A1 Jun Liu A1 Jing-jing Tao A1 Hua Zhang A1 Longxian Lv A1 Baohong Wang A1 Jifang Sheng A1 Lanjuan Li YR 2022 UL http://gut.bmj.com/content/71/1/222.abstract AB