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Original Research
Published 25 August 2026
Combined in-office endoscopic debridement and supine head-hanging budesonide instillation for postoperative difficult-to-treat chronic rhinosinusitis with nasal polyps: a retrospective cohort study
Lili Wang · Minghui Zhou · Shanpeng Yuan · Yang Jiao · Luping Wang · Yunpeng Ba · Qingwen Zhu
Frontiers in Allergy
doi 10.3389/falgy.2026.1914838