In the paper titled “Particle Radiation-Induced Nontargeted Effects in Bone-Marrow-Derived Endothelial Progenitor Cells” [1], there was an error in “Acknowledgments,” which should be corrected as follows.

Acknowledgments

This work was supported by the National Aeronautic and Space Administration (NASA) under Grant no. NNX11AD22G and American Heart Association (AHA) Grant no. 14GRNT18860032 to David A. Goukassian. This work was also supported in part by Grants from AHA nos. 10GRNT4710003 and NHLBI HL106098 to Xinhua Yan.