Mayack SR, Wagers AJ. Osteolineage niche cells initiate hematopoietic stem cell mobilization. Blood. 2008;112(3):519–531.

The corresponding author (Amy J. Wagers) and the journal wish to retract the 1 August 2008 paper cited above. Based on information discovered by the corresponding author after publication and reported by her to the journal in August 2010, which is now confirmed by a subsequent institutional investigation, this paper was found to contain duplicated data and other inappropriate manipulations. The corresponding author requests retraction of the paper in its entirety and apologizes to the reviewers, editors, and readers of Blood for any adverse consequences that may have resulted from the paper's publication. This retraction has not been signed by the first author (Shane R. Mayack), who maintains that the results are valid.