目的：探讨人骨髓在液氮长期保存下造血细胞活力。

Objective: To observe the effect of cryopreservation on activities of human bone marrow cells.

youdao

目的：探讨人骨髓在液氮长期保存下造血细胞活力。

Objective: To observe the effect of cryopreservation on activities of human bone marrow cells.

youdao