Erratum to: Pathol. Oncol. Res. (2012) 18:903–910

DOI 10.1007/s12253-012-9520-1

The original article contained an error.

The corrected Acknowledgments section is shown below.

Acknowledgments This study was supported in part by grants from the National Natural Science Foundation of China (grants 81172434 and 81202027) and Fundamental Research Funds for the Central Universities (grant 2012303020211).