Comparative study on virus shedding patterns in nasopharyngeal and fecal specimens of COVID-19 patients - Zhang, Ning; Gong, Yuhuan; Meng, Fanping; Shi, Yi; Wang, Jun; Mao, Panyong; Chuai, Xia; Bi, Yuhai; Yang, Penghui; Wang, Fusheng (Science China. Life sciences, 2021)