Expression of Concern: Mitochondrial-Targeted Antioxidant Therapy Decreases Transforming Growth Factor-β–Mediated Collagen Production in a Murine Asthma Model

The Journal has become aware of a duplication contained in a figure published in the January 2015 issue (1). The duplication appears in two panels labeled MT and MT/OVA in Figure 3A in the supplement to the article. The authors were contacted but were unable to locate the original images for that figure. Accordingly, this Expression of Concern is intended to inform readers that some conclusions drawn from the figure may not be valid.