This poster is related to the conference abstract paper: Mason, B., Justham, L., Whitby, L., Whitby, A. and Petzing, J., 2025. Reducing variability in flow cytometry cluster analysis using synthetic data: increasing analytical accuracy and precision in CD34+ stem cell enumeration. Cytotherapy, 27 (5) supplement, pp. S121-S122, which can be found at: https://doi.org/10.1016/j.jcyt.2025.03.239.