In the article titled “Interleukin-9 Deletion Relieves Vascular Dysfunction and Decreases Blood Pressure via the STAT3 Pathway in Angiotensin II-Treated Mice” [1], the authors apologize that a blot of P-STAT3 which did not belong to this study was mistakenly used in (Figure 6(c)). The statistical results of P-STAT3 protein expression were correct, and the corrected (Figure 6(c)) is shown below.