The authors have retracted this article because of significant overlap with a previously published article . All authors agree with this retraction. The online version of this article contains the full text of the retracted article as electronic supplementary material.
 Wenlong Liu et al. Interleukin-31 promotes helper T cell type-2 inflammation in children with allergic rhinitis Pediatric Research (2015) 77:20-28. https://doi.org/10.1038/pr.2014.151