CD200 and acute myeloid leukemia: Since we have observed a frequent association of BCL2 positivity and CD200 overexpression in AML patients [18], we aimed to elucidate the prognostic role of CD200/BCL2 co-expression and its association with specific leukemia subsets in our cohort of AML patients treated with intensive chemotherapy, with the purpose of identifying patients suitable for new targeted treatments.