Negrini S, Giuliani M, Durali D, Chouaib S, Azzarone B. Membrane-bound IL-15 stimulation on peripheral blood natural kiler progenitors leads to the generation of an adherent subset co-expressing dendritic cells and natural kiler functional markers. Haematologica 2011; 96(5):762-766; https://doi.org/10.3324/haematol.2010.033738.