Flow cytometric analysis of NBM and MDS patient marrow cells. Marrow cells were labeled with CD71-FITC (horizontal axis) and GPA/RAM-PE (vertical axis). (A and B), NBM samples; (C), patient 13; (D), patient 17; (E), patient 8; (F ), patient 1; (G), patient 2; (H), patient 6; (I), patient 16; (J), patient 7. Patient numbers correlate to case numbers in Table 1.