Neutrophilic inflammation and epithelial barrier disruption in nasal polyps characterize non‐steroidal anti‐inflammatory drug exacerbated respiratory disease. Issue 4 (26th December 2021) - Andiappan, Anand Kumar; Asad, Mohammad; Chua, Celine; Sehanobish, Esha; Ren, Zhen; Chan, Xue Ying; Lum, Josephine; Ang, Nicholas; Duan, Kaibo; Gersten, Adam; Abuzeid, Waleed M.; Akbar, Nadeem; et al.