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Effects of microglia on the proliferation and differentiation of human umbilical cord blood neural-like stem cells (HUCB-NSCs) into various types of neural cells. For each experiment–control pair, superimposed on the shorter bar is a half confidence interval for the difference of percentages. The remaining gap between bars reflects the least probable difference at the 95% confidence level. *p<0.05. **p<0.01. ***p<0.001. ****p<0.0001.
