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. 2005 Dec 13;102(51):18644–18648. doi: 10.1073/pnas.0509315102

Table 1. Summary of experimental results obtained with hESC transplantation in mouse embryos.

Experiment Cell passage No. of embryos that died No. of embryos with good integration No. of embryos with poor integration No. of embryos with no integration
1 30 0 7 0 2
2 40 1 4 4 0
3 45 4 1 0 3
4 52 0 1 5 0

Good integration means six or more EGFP+ cells per 40-μm brain section. Poor integration refers to fewer than six EGFP+ cells per 40-μm brain section.