Stem-Kine Supplementation Augments Circulating Cells with CFU-E Generating Activity. CFU-E were generated by incubation of PBMC isolated from healthy volunteers with EndoCult Media. Data is presented as ratio to pre-treatment values. Open squares represent quantification by Alpha-Ease software, whereas closed symbols indicate quantification per viewing field by microscope. *P < 0.05 compared to pre-treatment groups.