Treatment of Steroid Resistant Grade II to IV Acute GVHD by Infusion of Mesenchymal Stroma Cells Expanded With Human Plasma and Platelet Lysate – a Phase I/II StudyL.C.J. te Boome, J.H.E. Kuball, I.C.M. Slaper-Cortebach et al.|Transplantation and Cellular Therapy|2011Cited by 2