Towards Mimicking the Fetal Liver Niche: The Influence of Elasticity and Oxygen Tension on Hematopoietic Stem/Progenitor Cells Cultured in 3D Fibrin Hydrogels oleh Christian Garcia-Abrego, Samantha Zaunz, Burak Toprakhisar, Ramesh Subramani, Olivier Deschaume, Stijn Jooken, Manmohan Bajaj, Herman Ramon, Catherine Verfaillie, Carmen Bartic, Jennifer Patterson