For the molecular diagnosis of this syndrome, it is therefore important to sequence DNA from bone marrow cells, or, preferably, from indiidual clonogenic hematopoietic colonies.

• 为了此类症状的分子学确诊，确定骨髓细胞的DNA序列，或者说确定的克隆原造血细胞的DNA序列，变得很重要。