Figure 1.

Morphology of Cultured ERC. A) Morphology of freshly isolated menstrual blood mononuclear cells. B) Fibroblast-like morphology of menstrual blood mononuclear cells after 2-week cell culture. C) Clonal population of menstrual cells after plating in 96 well plate 1 week after cloning. D) The same population 2 weeks after cloning.