Effectiveness and safety of Qingfei Dayuan granules for treating influenza and upper respiratory tract infections manifested by the pulmonary heat-toxin syndrome: A multicenter, ra... oleh Weinan Li, Weinan Li, Weinan Li, Weinan Li, Lihan Xie, Xiaoyun Zhu, Yi Yang, Linqun Wang, Min Yang, Hengfei Li, Hengfei Li, Hengfei Li, Xucheng Li, Guangjun Yan, Xiongfei Wu, Weijun Zhao, Jilong Zhang, Gang Yang, Yufei Guo, Chengyin Li, Chengyin Li, Chengyin Li, Rui Wang, Lijun Shi, Lijun Shi, Lijun Shi, Zhili Xiong, Puming Xu, Wenwen Kong, Mengdi Cui, Xi Yang, Yuanming Ba, Yuanming Ba, Yuanming Ba