ECM	Extracellular matrix
ESS	Endoscopic sinus surgery
SNOT22	Sino-Nasal Outcome Test 22
TCM	Traditional Chinese medicine
ZYD	Zhu-Yuan decoction
PMMA	Polymethyl-methacrylate
MSC	Mesenchymal stem cell
AEC	Alveolar epithelial cell
MSC-CM	MSC conditioned medium
SAEC	Small airway epithelial cell
HGF	Hepatocyte growth factor
NGF	Nerve growth factor
IGF-1	Insulin-like growth factor 1
NTS	Non-thermal plasma-treated solution
MMP	Matrix-metalloproteinase
ETI	Epithelial thickness index
STI	Sub-epithelial index