PMCH and myelodysplastic syndrome: Table 1 shows the characteristics of normal subjects and all the patients included in this study. The average or median values of mean corpuscular volume (MCV) in patients with AA, MDS, and MA were 95.82, 100.80, and 123.26 fl, respectively. The average or median values of mean corpuscular hemoglobin (MCH) in patients with AA, MDS, and MA were 33.22, 33.21, and 41.91 pg, respectively. The average or median values of MCH concentration (MCHC) and red cell distribution width (RDW) were seen in Table 1.