This article refers to:
Gao J, Iwamoto H, Koskela J, et al. International Journal of Chronic Obstructive Pulmonary Disease. 2016;11:2457–2465.
On page 2457, Abstract, line 3, the text “To clarify the inflammatory mediatypical for ACOS, five biomarkers, namely interleukin (IL)-13, myeloperoxidase (MPO), neutrophil gelatinase-associated lipocalin (NGAL), chitinase-like protein (YKL-40), and IL-6, were selected” should be “To clarify the inflammatory mediators typical for ACOS, five biomarkers, namely interleukin (IL)-13, myeloperoxidase (MPO), neutrophil gelatinase-associated lipocalin (NGAL), chitinase-like protein (YKL-40), and IL-6, were selected.”