IL9 and respiratory syncytial virus bronchiolitis: Controversial results were observed in several studies as well, and they reported no significant associations between IL-9 promoter polymorphism A−345G and RSV bronchiolitis [52], T113M in IL-9 and atopic bronchial asthma [53], rs1859430 and rs2069868 and Graves' disease [54], or IL-9 rs2069885 and allergic rhinitis in Iranian women [55].