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Characteristics of included studies
INCS = intranasal corticosteroid; RCT = randomized controlled trial; FPANS = fluticasone propionate aqueous nasal spray; CRSwNP = chronic rhinosinusitis with nasal polyposis; SNOT-21 = Sino-Nasal Outcome Test–21 scores; LM = Lund-Mackay; CT = computerized tomography scan; Beclo = beclomethasone dipropionate; triam = triamcinolone acetonide; Budes = budesonide.
