Fig. 4

Drug test correlation. A Response heterogeneity score (standard deviation of the scores) calculated for the 25 PDOs to each drug. B Scatterplot of the 25 PDOs score to both Pemetrexed and Raltitrexed. Each dot represents one PDO. C Drug Correlation matrix. The score of the 25 PDO lines to all drugs is analyzed with a Pearson correlation test in C. Color coding highlights the correlation based on the Pearson correlation coefficient (R)