Correction: Article on Th17 for IFN-Mediated Papilloma Promotion

	Abstract

In the article on Th17 for IFN-mediated papilloma promotion in the March 1, 2009 issue of Cancer Research (1), the Acknowledgments section should have included the following:

We sincerely express our gratitude to Professor Thomas Blankenstein for his help on this article. Some of the experiments reported in the article (Fig. 2D) were performed at the Institute of Immunology, Charite Universitätsmedizin Berlin, Berlin, Germany under the supervision of Prof. Blankenstein. Experiments described in Fig. 2D were supported by the Deutsche Forschungsgemeinschaft by a grant to Prof. Blankenstein as Principal Investigator and Z. Qin as Co-Investigator (BL288-1).

The authors apologize for having omitted this fact.