Illustration of growth inhibition assessed by relative cell counts. Panels A and B show growth curves for two cell line models with doubling times of 60 and 30 hours, respectively. The cell line models are treated with 6 increasing concentrations C1,…,C6 and growth curves for each concentration are shown. The red line illustrates total growth inhibition (TGI). Dose-response curves calculated by relative cell counts for time points 25, 49, and 73 hours are shown in Panel C.