Correction to: Cell Research (2006) 16: 189–195. doi:10.1038/sj.cr.7310026; published online 13 February 2006

There is an error in Table 3. Tgfβ3 should belong to Hematopoietic growth factors. This has now been corrected online and in the current print issue.

Table 3 Partial list of genes encoding secreted proteins expressed by HSCs