STEM CELLS 2013;31;2003–2014 doi: 10.1002/stem.1461

Erratum to: Reversing bone loss by directing mesenchymal stem cells to bone

Wei Yao, Min Guan, Junjing Jia, Weiwei Dai, Yu-An E. Lay, Sarah Amugongo, Ruiwu Liu, David Olivos, Mary Saunders, Kit S. Lam, Jan Nolta, Diana Olvera, Robert O. Ritchie, Nancy E. Lan

The authors have informed us that the below Author contribution information was missing from the title page footnote of their article:

W.Y and M.G. contributed equally to this article.

We apologize for this error and any inconvenience it may have caused.