CD34 and leukemia: Specifically, microarray data of an established normal body atlas (n = 353) [20] normal CD34+ HSCs (n = 35) [21], macrophages (n = 45), monocytes (n = 26), B cells (n = 24), and T cells (n = 20) were compared with those for four major lymphoma and leukemia entities (n = 819).