Thomas D. Schreiber, Carolin Steinl, Mike Essl, Harald Abele, Konstanze Geiger, Claudia A. Müller, Wilhelm K. Aicher, Gerd Klein. The integrin α9β1 on hematopoietic stem and progenitor cells: involvement in cell adhesion, proliferation and differentiation. Haematologica 2009;94(11):1493-1501; https://doi.org/10.3324/haematol.2009.006072.