Effectiveness and safety of Sanhan Huashi granules versus nirmatrelvir–ritonavir in adult patients with COVID-19: A randomized, open-label, multicenter trial - Xiaohui Zou; Kang Chang; Guohui Fan; Huanwei Zheng; Hezheng Shen; Liang Tang; Yingying Yang; Yeming Wang; Linhua Zhao; Hong Lv; Xin Zhou; Xiaoming Shen; et al. (Science Bulletin, 2024)