In the article titled “On Two-Level State-Dependent Routing Polling Systems with Mixed Service” [1], there was an error in the “Acknowledgments” section, which should be corrected as follows:
This work was supported by a Grant from the National Science Foundation of China (nos. 61463051 and 61461054), the National Science Foundation of Yunnan Province (no. 2012FD002), and the Science Foundation of Yunnan Provincial Department (no. 2014Z010).