Efficacy of botanical lozenges in the treatment of chronic pharyngitis: a randomized controlled trial by Yi Wu, Yi Wu, Feng Zhang, Feng Zhang, Feng Zhang, Feng Zhang, Dan Kuang, Dan Kuang, Dan Li, Dan Li, Dan Li, Jiai Yan, Jiai Yan, Ju Yang, Ju Yang, Qinyue Wang, Qinyue Wang, Yingyu Wang, Yingyu Wang, Jing Sun, Jing Sun, Yiran Liu, Yiran Liu, Yanping Xia, Yanping Xia, Hong Cao, Hong Cao, Hong Cao, Hong Cao

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