Abbreviations
CRS: Chronic Rhinosinusitis; CRSwNP: Chronic Rhinosinusitis with Nasal
Polyps; EPOS 2020: European position paper on rhinosinusitis and nasal
polyps 2020 guidelines; SD: Standard Deviation; SNOT-22: 22-item
Sino-Nasal Outcome Test; VAS: Visual Analog Scale; L-K: Lund-Kennedy;
rh-bFGF: recombinant human-basic fibroblast growth factor. ESS:
endoscopic sinus surgery. FESS: functional endoscopic sinus surgery.