Immunophenotyping of chimeric mouse BM. BM (>10% CD45⁺) was stained with a panel of antibodies specific against different human blood cell lineages. FACS profiles of a representative mouse are shown for CD34 versus CD38 (A), CD15 versus CD33 (B), CD16 versus CD56 (C), GpA versus CD71 (D), CD3 versus CD4 and CD8 (E), and CD19 versus CD20 (F) expression, respectively.