Results There were no differences between two BMSC groups in the cell survival rate, cytomorphology, proliferative abilities and ALP activity (all P>0.05).

• 结果第4代人BMSC冻存、复苏前后的两组细胞无论在细胞活性率、细胞形态、生长过程、ALP活性等方面均无显著性差异(P>0.；05)。