Louqin Zhisou Decoction Inhibits Mucus Hypersecretion for Acute Exacerbation of Chronic Obstructive Pulmonary Disease Rats by Suppressing EGFR-PI3K-AKT Signaling Pathway and Restoring Th17/Treg Balance January 20, 2019https://www.hindawi.com/journals/ecam/2019/6471815/ https://www.ncbi.nlm.nih.gov/pubmed/30800170?dopt=Abstract