Intravenous infusion of allogeneic mesenchymal stromal cells in refractory or relapsed aplastic anemia - Clé, Diego V.; Santana-Lemos, Barbara; Tellechea, Maria Florencia; Prata, Karen L.; Orellana, Maristela D.; Covas, Dimas Tadeu; Calado, Rodrigo Tocantins (Cytotherapy, 2015)