输注前从产品袋中留取标本检查有核细胞计数、单个核细胞比例、CD34+细胞计数和细胞的成活率（台盼蓝拒染率）。
Results:The method is viable. Improving the rate of product and can gain good economical benefit.结论：方法可行，改善了提取效果，提高了提取的收率，取得了良好的经济效益。
The effects of attachment, growth curve and cytogenetic property of bone marrow stem cells on silk fibroin films were studied by viable cell counts and detection of chromosome aberration rate.结果丝素膜能支持细胞在其表面贴壁， 生长曲线和染色体正常。
