Giannoni P, Pietra G, Travaini G, Quarto R, Shyti G, Benelli R, Ottaggio L, Mingari MC, Zupo S, Cutrona G, Pierri I, Balleari E, Pattarozzi A, Calvaruso M, Tripodo C, Ferrarini M, de Totero D. Chronic lymphocytic leukemia nurse-like cells express hepatocyte growth factor receptor (c-MET) and indoleamine 2,3-dioxygenase and display features of immunosuppressive type 2 skewed macrophages. Haematologica 2014; 99(6):1078-1087; https://doi.org/10.3324/haematol.2013.091405.