ITGA2B and myelodysplastic syndrome with excess blasts: A study has reviewed marrow smears of 26 RA and 28 RAEB patients, and micro-megakaryocytes were identified in 39.3 and 46.5 % cases under Wright-Giemsa staining, compared with 92.3 and 100 % under CD41 immune staining (χ2 test: P < 0.005 and P = 0.01) (Wenyu Cai, unpublished data).